Answer:
Explanation:
Answer: D, having a best friend who doesn't use a seat belt.
Teenagers like to rebel and appear cool in front of their peers so they are more likely to do things that are against what their parents are doing or what the law states. If they have a best friend however that does wear their seat belt then they will most likely conform and do the same as they don't want to stand out or seem, also best friends are comfortable enough around each other to not show off. It's different when it's just a friend though, teenagers will try and impress each other over sometimes dangerous things. We've all done it.
 
        
             
        
        
        
Answer:
give him advice
Explanation:
because its best to help them in need like they need to know how to take care of the baby in the stomach 
 
        
             
        
        
        
Answer:
Depression
Explanation:
Depression is usually linked to an under-supply of serotonin because serotonin is consider the "happy" endorphin
 
        
             
        
        
        
Answer:
Cliques are part of a larger social network.
Explanation:
According to social sciences, a clique is a group of people that interact one another and have similar interests.
 This social phenomenon is most seen during adolescence, because each age tend to represent a social group, a clique. In addition, cliques are often formed by similar social status, or ethnicity, or by stereotypical characteristics, as being athletes, nerds or outsiders.
So, all those characteristics make cliques part of a larger social network. Mainly because these groups are formed inside a complex social system, bigger and away from simplicity and interacting with cliques is part of the social development.