Answer:
<h2>a. thoughts about life.</h2>
Explanation:
Because of hormones changes, teen agers tend to have constant swing on their moods and temperaments. This is because during adolescence, people have a wider emotional range than childhood or adulthood, that's why this is the hardest stage in life, emotions are too triggered by hormones.
One particular characteristic is that during this period, people have a lot of thoughts about they life, what they want, their desires, all these (adding hormones effects) explain why adolescents are so rebels, they wanna do what they want. This happens, because they question everything during teen ages. However, also these behaviours help teens to be more independent from their parents.
In addition, adolescents also become to be interested in sexual relationships. Often it's said that during teen ages, the constant rebellion is due to the desire of become independent adults, and the authority (parents) represent an inhibition of their desires. Some people even think about having husband or wife, and kids, that's how far is the emotional impact.