All of the following are examples of informational social influence except:

a. you are running a race, but because you are unsure of the route, you wait to check which of two roads the other runners follow

b. you've just started work at a new job, and a fire alarm goes off; you watch your coworkers to see what to do.

c. when you get to college you change the way you dress so that you "fit in" better--that is, so that people will like you more.

d. you ask your adviser which classes you should take next semester.

e. mass psychogenic illness

c. when you get to college you change the way you dress so that you "fit in" better--that is, so that people will like you more.

Explanation:

Informational social influence leads to internalization (private acceptance) of the majority opinion/behaviour i-e you actually change your attitude / belief. It is basically a difficult task, unsure of the answer, usually ambiguous, actually use others's response to form an opinion and actually believe what others say and internalize in. It is usually found in the crisis situation, when you don't know what to do and following th advice of expert. Examples include listening to fireman.

Hence in the given options, only c. when you get to college you change the way you dress so that you "fit in" better--that is, so that people will like you more. seems not to be example of Informaltiona social influence.