EXPLANATION: The puzzle pieces interlock with tab and slot.

CORRECT ANSWER: C - The pieces fit together with the tab (solid circle) inserting into the slot (hollow circle).

WHY NOT OTHERS:

• A: Solid square, no puzzle pieces

• B: Only one circle, doesn't use both pieces

• D: Wrong orientation of pieces

EXPLANATION: The pieces show different views of a 3D block structure.

CORRECT ANSWER: C - The pieces fit together to form an L-shaped 3D block.

WHY NOT OTHERS:

• A: Simple square, doesn't represent 3D structure

• B: Pieces don't match the given views

• D: Incorrect arrangement of blocks

EXPLANATION: The pieces form a square when assembled correctly.

CORRECT ANSWER: B - The diamond and two triangles form a perfect square.

WHY NOT OTHERS:

• A: Solid square, doesn't show piece arrangement

• C: Pieces don't form a square

• D: Incorrect arrangement with gaps

EXPLANATION: The three pieces fit together to form an L-shaped figure.

CORRECT ANSWER: B - The pieces fit together perfectly without gaps or overlaps.

WHY NOT OTHERS:

• A: Just a square, doesn't use all pieces correctly

• C: Pieces don't fit the original shapes/sizes

• D: Wrong arrangement of pieces