In Which of the Following Scenarios Would Enforcement of Specific

In which of the following scenarios would enforcement of specific performance be appropriate?

A) your bookstore agrees to order a textbook for you but breaches their contract with you by canceling the order the next day
B) you order three gallons of white ceiling paint from a local store and they breach by not delivering or making the three gallons available to you
C) you order a current model name brand television from a department store and a few days later they breach by not ordering it from the manufacturer
D) you own the pistol used by Hamilton and contract to buy the pistol used by Burr in the Hamilton-Burr duel to complete your set, but despite the contract the Burr pistol owner refuses to sell at the last minute