B social conditions
C physical conditions
Answer: There is a lot of causes for narcissism like the environment and bad parenting I really don't know bro.
Edit: also I heard medication can cause narcissism..
Answer:
reasoning/unspoken peer pressure
Explanation:
your friend convinced you with the appealing nature of ignorance, therefore reasoning with you. Also, since the person is your friend, this can be seen as peer pressure (your friend is the "peer" that's pressuring you into smoking).