A and B Agree in Writing That a Will Sell

Multiple Choice

A and B agree in writing that A will sell to B $5000 in widgets by September 1.On August 28th,B tenders payment of the $5000.00 on A,who refuses to accept it and later refuses to deliver the widgets to B because their value went up after the contract was entered into.In this case,if A sues B for breach of contract and B successfully counterclaims for specific performance

A) A is in breach of contract and B will only have to pay the $5000.00,but no interest or costs.
B) by not continuously trying to ensure that A accepts the $5000.00,B is in breach of contract.
C) A is in breach of contract and B is not bound to do anything more.
D) the contract is at an end.
E) none of the above