AJ Contractually Agreed to Repair Shirley's Car Within One Week

AJ contractually agreed to repair Shirley's car within one week. Three days later, however, he informed her that he would not be able to complete the job because he had lost all of his tools in a poker game. The facts most clearly demonstrate the concept of

A) bankruptcy.
B) deviation.
C) novation.
D) breach of a warranty.
E) self- induced impossibility.