What happens to consumer surplus, producer surplus, and total surplus when a tariff is imposed?

• A. Consumer surplus and producer surplus both increase, while total surplus remains unchanged.
• B. Consumer surplus decreases, producer surplus increases, and total surplus decreases.
• C. Consumer surplus decreases, producer surplus decreases, and total surplus increases.
• D. Consumer surplus increases, producer surplus decreases, and total surplus increases.

Answer: (B)