In a market with a tax, how is tax revenue represented in terms of consumer and producer surplus?

• A. Tax revenue is the area transferred from consumer and producer surplus to the government, represented by B+D.
• B. Tax revenue is the area that decreases producer surplus, represented by D+F.
• C. Tax revenue is the area that increases consumer surplus, represented by C+E.
• D. Tax revenue is the area that remains constant, represented by A+F.

Answer: (A)