Contrasting buyer and seller structures in competitive and monopoly markets

Steps:

• Define competitive markets: many buyers and many sellers.
• Define monopoly markets: many buyers and one seller.
• Compare options to match these core traits for each market type.
• Identify the row pairing many buyers (common to both) with single seller (monopoly-specific).

Why A is correct:

• Aligns with economic definitions: competitive markets have many buyers, monopolies have a single seller facing many buyers.

Why the others are wrong:

• B: Incorrectly assigns single buyer to competitive markets, which have many.
• C: Misplaces many sellers (competitive trait) with single buyer (not monopoly).
• D: Wrongly gives single seller to competitive markets and many sellers to monopolies.

Final answer: A