Which of Wilson's typologies is the least amenable to discretion?

Isabel suffered symptoms so similar to those associated with pregnancy induced morning sickness that she erroneously concluded that she was pregnant. Isabel's conclusion best illustrates the influence of:

a. confirmation bias. b. the availability heuristic. c. the representativeness heuristic. d. functional fixedness.

As their preferred methods of conflict resolution, participants from the United States preferred to save the "face" of their opponents

Indicate whether the statement is true or false.