✅ The relationship between BEGINNING and END is one of direct temporal opposition, representing the start and conclusion of a period or process.

✅ DAWN signifies the very beginning of the day, specifically the first light or sunrise.

✅ To complete the analogy, we need the direct temporal opposite or the end of the day's light period.

✅ Dusk is the period of fading light after sunset, marking the end of daylight before nightfall, making it the perfect counterpart to Dawn.

❌ A) Night is the period after dusk, not its direct opposite in the same way BEGINNING is to END.

❌ C) Noon represents the middle of the day, not the end.

❌ D) Morning is the period following dawn but precedes the middle and end of the day.

✅ The first pair, Day : Week, establishes a relationship where a smaller unit of time (Day) is a constituent part of a larger, commonly recognized sequential period of time (Week).

✅ Following this same part-to-whole relationship, a Month is a constituent unit that makes up a Year.

❌ Option B, Season, is a period within a year but not a direct numerical aggregation of months in the same way a week is of days or a year is of months.

❌ Option C, Calendar, is a system or tool for organizing time, not a unit of time itself.

❌ Option D, Decade, is a period of ten years; while composed of months, it is not the primary or immediate larger unit that a month directly aggregates into, unlike the relationship between day and week, or month and year.