I have never gone to Japan. I know . . . . . . . people there.

A. few

B. a few

C. many

D. most of

Answer: Option A

Solution(By Examveda Team)

Few is a quantifier used with plural countable nouns. Little is used with singular uncountable nouns. People are plural countable nouns. Option A is correct.
I have never gone to Japan. I know few people there.