An Action for the Agreed Sum Is the Most Common

An action for the agreed sum is the most common claim brought for breach of contract. Although it is a monetary claim, it is distinguishable from a damages claim for breach of contract in several ways. Which of the following statements is false?

A) The claimant for the agreed sum need not prove any loss caused by the contract breaker's breach, only that he has not received payment.
B) The remoteness limit is irrelevant to the innocent party's claim for the agreed sum.
C) The innocent parties' failure to mitigate is irrelevant to his claim for the agreed sum.
D) An innocent party cannot claim damages for breach of contract in addition to the agreed sum.