Government intervention can increase total welfare when:

A) there are costs or benefits that are external to the market.
B) consumers do not have perfect information about product quality.
C) a high price makes the product unaffordable for most consumers.
D) all of the above
E) A and B only

Government Intervention

Actions taken by the government to influence or directly control economic or market conditions.

External Costs

Costs incurred by third parties who are not involved in a transaction, often leading to market failure if not properly accounted for.

Perfect Information

A market condition where all participants have complete and identical information about the product, including its price and quality.