✅ Chair is a countable noun because you can count individual chairs (one chair, two chairs) and it has a plural form (chairs).

❌ Advice is an uncountable noun; you cannot say "two advices" but rather "two pieces of advice."

❌ Money is an uncountable noun; while you can count units of currency (dollars, euros), the word "money" itself is treated as a mass noun (e.g., "how much money," not "how many monies").

❌ News is an uncountable noun, always treated as singular, even though it ends with 's' (e.g., "The news is good," not "The news are good").

✅ "Chair" is a countable noun because it refers to an individual item that can be counted. It has both a singular form ("a chair") and a plural form ("chairs"), and you can quantify it with numbers (e.g., "three chairs").

❌ "Information" is an uncountable noun; it refers to a mass or concept that cannot be counted individually. You cannot say "an information" or "informations."

❌ "Furniture" is an uncountable noun; it is a collective term for items like chairs, tables, and beds. While the individual items are countable, "furniture" itself is treated as a mass noun and does not have a plural form.

❌ "Advice" is an uncountable noun; it refers to a general concept or suggestion. You cannot say "an advice" or "advices," but rather "a piece of advice."

✅ Option D is correct because "birds" is a countable noun, and "many" is the appropriate quantifier for countable nouns.

❌ Option A is incorrect because "furniture" is an uncountable noun; you cannot say "a new furniture." Instead, you would say "a new piece of furniture."

❌ Option B is incorrect because "advice" is an uncountable noun; while "much" is used for uncountable nouns, the phrasing "much good advice" is grammatically correct for uncountable nouns, but the question asks for correct usage of a *countable* noun, and "advice" is not countable.

❌ Option C is incorrect because "information" is an uncountable noun, and while "some" can be used with both countable and uncountable nouns, the sentence itself doesn't feature a correctly used countable noun as the primary example of correct usage.

✅ "Chair" is a countable noun because it has both a singular form ("a chair") and a plural form ("chairs").

You can quantify it with numbers (e.g., "one chair," "three chairs").

❌ "Knowledge" is an uncountable noun; you cannot say "knowledges" or "a knowledge."

❌ "Progress" is an uncountable noun, referring to advancement generally; we don't say "progresses" or "a progress."

❌ "Weather" is an uncountable noun; you cannot say "weathers" or "a weather."

✅ An 'article' is a countable noun because it refers to an individual item that can be counted (one article, two articles) and has a plural form (articles).

❌ 'Information' is an uncountable noun; you cannot say "one information" or "two informations". We use phrases like "a piece of information".

❌ 'Furniture' is an uncountable noun, referring to a category of items. While specific items like 'chairs' or 'tables' are countable, 'furniture' itself is not directly counted (you wouldn't say "three furnitures").

❌ 'Advice' is an uncountable noun; you cannot say "an advice" or "advices". Instead, we refer to "a piece of advice" or "some advice".