Ddddddddddddddddddddddddddddddddddddddddddddddddddddddd
Answer: Narcissistic
Explanation:
People suffering from NARCISSISTIC PERSONALITY DISORDER demonstrate an extreme sense of self importance coupled with a lack of empathy for others.
They are insensitive to other people's feelings but are envious of other people and believe other people are envious of them as well.
Morty is suffering from this personality disorder.
Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be through a "mutual understanding," since this was the purpose of the Berlin Conference.