When There Is Market Failure So That a Market Produces

Multiple Choice

When there is market failure so that a market produces less than the efficient amount,

A) there is a deadweight loss.
B) consumers definitely lose and producers definitely gain.
C) the sum of producer surplus and consumer surplus is larger than when the efficient quantity is produced.
D) consumers definitely gain and producers definitely lose.
E) consumer surplus definitely is larger than when the efficient quantity is produced.