Suppose that you are in an emergency situation and need . social psychological research suggests that your best bet is to

a. ? try to move to a more crowded area where many people will see you

b. identify a particular person, tell him or her that you need , and tell him or her precisely what to do?

c. simply scream at the top of your lungs until someone you?

d. repeatedly say the words "" or "i need " so that there is no ambiguity about the nature of the situation?