Tanya is making a presentation for a new building design, and she hopes the rest of the team will support her proposal. In the days leading up to the meeting, she has lunch or coffee with several different colleagues. In each case, at some point she says something like, "Look, we've been friends for a long time. Can I count on you to back my play?This is an example of the influence tactic known as:_________
a. exchange.
b. apprising.
c. ingratiation.
d. personal appeal.
e. organizational politics.