You have submitted a proposal to a client as part of a competitive bidding effort. One of the people evaluating your bid informs you that it is customary to send them some gifts in order to have a better chance of winning the contract. You should:
A. Send them some gifts.
B. Do not send any gifts and see what happens.
C. Report the matter to your superior, the project sponsor, or the corporate legal group for advice.
D. Withdraw the proposal.