Answer: Option D
Explanation: In simple words, co- marketing refers to the process in which two firms of an industry, who serves the same audience, combines ther resources for increasing their scale of operations with the ultimate goal of increasing profits.
Generally such arrangements do not happen between two major competitors in an industry. This is more common in international businesses where one firm has technology and other has customer base.
Hence from the above we can conclude that the correct option is D .
