Correct Option: B

amicability (Noun) : a state where something is done/ achieved in a polite/friendly way and without arguing
enmity (Noun) : feeling of hatred towards somebody
rivalry (Noun) : a state in which two people, companies, etc. are competing for the same thing
animosity (Noun) : a strong feeling of opposition, anger/ hatred; hostility
proximity (Noun) : the state of being near somebody/something in distance/time