It should be D vex means to be made annoyed or angry.
I say A but i need more context this is too vague
The most effective paraphrase is by studying the text more than 1. Summarizing and taking each paragraph step by step. Also jot down what seems important to you and/or the questions. Also take your time while reading.
Answer:
I think it is because For someone to get the joy that life brings. Maybe because of family or other relations.
Explanation:
It is important for people to be happy it's not only good for your mental health but also your wellbeing.
