​Which of the following is TRUE?

A) ​Purchase a supplier as long as the supplier is profitable
B) Purchasing a profitable customer would lead to an increase in profits
C) Purchasing a profitable supplier may not necessarily increase your profits
D) ​Purchasing a profitable supplier is a bad idea and would lead to decreased profits

While a profitable supplier may be valuable to a company, purchasing them may not necessarily lead to an increase in profits. There may be other factors at play such as integration costs, potential loss of other suppliers, etc. Therefore, it is important to carefully evaluate the potential benefits and drawbacks before making a decision to purchase a supplier. Option A, B, and D are incorrect as they contain either incomplete or incorrect information.