Answer:
A bit confused with the question but here is two answers.
1. Humans need affection and dating and those other steps are ways to gain affection.
2. Heartbreak and emotions are a
always a cause for concern when entering a relationship.
Explanation:
Hopefully this is the answer you were looking for lol.
The answer is A. Transition
Divorce and changing schools is also considered a transitions.
An enviromental change could trigger a drug abuse for teens because it forced them to adapt (socialize with friends, etc)