I am looking for the answer to 18-10 part a, b, and c

ABC clothiers, inc has a contract with Taylor &Sons, a retailer to deliver one thousand summer suits to Taylors place of business on or before May 1. On April 1, Taylor receives a letter from ABC informing him that ABC will not be able to make the delivery as scheduled. Taylor is very upset as he had planned a big ad campaign.

a. discuss whether Taylor can immediately sue ABC for breach of contract

b. Taylor's son, tom, tells his father that they cannot file a lawsuit until ABC actually fails to deliver the suits on May 1, is he correct

c. assume that taylor and sons can either file immediately or wait until abc fails to deliver the goods which is better