Young people join gangs because
a. they need positive role models
b. they believe that gang members are like family or close friends
c. they are strong and like to be aggressive
d. they feel loved by their parents

The answer is:B. they believe that gang members are like family or close friends

The act of joining gangs could be strongly correlated with all people's hierarchy of needs. Normal people always had the needs to be considered as valuable by other members of social group. Joining gangs could be considered as an effort to seek that exact feeling since each gang members usually bonded by a similar likes or circumstances.

c is the newer have a great day