the company has entered into an employment agreement with mr. kim ,(콤마)
_____ has agreed to perform the services as a consulting manager.

(a) anyone
(b) who
(c) that
(d) those

답이 b라는것은 알고 있는데요

갑자기 궁금해져서요~ ㅎㅎ

만약에 mr. kim 다음 콤마가 없었다면 c도 가능한 답인가요?

관계대명사 공부한지 몇시간안되서 감이 올듯말듯 하네요 ㅎㅎ;;