In Which of the Following Situations Will Specific Performance Be

Multiple Choice

In which of the following situations will specific performance be granted?

A) Albert orders 200 tonnes of grain from Ben. Because Ben has not been paying his suppliers as of late they refuse to deliver to him. Ben informs Albert he cannot perform the contract.
B) Alan fails to show up for work at his computer programming job and his boss, Bernard, requests his attendance in order to finish a big order.
C) Anglo Industries is the sole producer of aminobutanol in Europe. They have concluded a five year supply contract with Britishcare, which uses the product for the production of vaccines. In the third year of the contract, Anglo decides to manufacture vaccines as well and refuses to supply Britishcare for the remaining two years. The only other supplier of aminobutanol is in Japan and they have no extra capacity to supply Britishcare
D) Alice owns an exotic pet shop. She orders a rare Melanesian finch for one of her customers from Bob, who owns an animal import business. Because of a new law banning the import of Melanesian Finches, Bob cannot deliver the finch to Alice.