I think it is the last one
Based on the information given, it should be noted that the paragraph supports the theme that teens are not necessarily wired to be impulsive.
<h3>What is a theme?</h3>
It should be noted that a theme simply means the main idea that's in a sentence.
The theme in "Teenage brains are malleable and vulnerable" is that teens are not necessarily wired to be impulsive.
The article also stated that it's important to treat depression in teens early.
Learn more about themes on:
brainly.com/question/25336781