3 Sofia is a criminologist who is performing a study on gangs in Chicago. For the first few weeks, she doesn't talk to any of the gang members. She just follows them in an
unmarked car and watches them from afar to gather information. What kind of technique is Sofia using to study this human behavior?

- survey
- interview
- experiment
- observation

Read the aphorisms. be slow in choosing a friend, slower in changing. an open foe may prove a curse; but a pretended friend is worse. a true friend is the best possession. according to these aphorisms from benjamin franklin's poor richard's almanack, what might happen if a person is careless in choosing a friend? it is best not to have friends because they will usually betray you. casual friends are often the best and can be more trusted than enemies. a person who has betrayed you can sometimes become a good friend. a friend who is not carefully chosen can be worse than an enemy.