Harry runs a small catering business. He takes care of most business activities on his own with the help of a few staff members. He has a limited number of clients. Recently, one of the clients has claimed that Harry has failed to follow the terms and conditions of their business contract. The client is threatening to sue Harry for a breach of contract. Which crucial business function has Harry failed to perform?
A. finance
B. legal
C. human resources
D. marketing
