Dear. Ms. Randolph,

You have just received a gift of wellness. Your father, Mr. Tony Randolph, ________

(A) must give

(B) was giving

(C) has given

(D) will give

you a one-year Akhira Spa membership, Which entitles you to unlimited use of the spa's heated pool, saunas, and fitness studio.

여기서 답은 c인데 b는 왜안되는지 궁금합니다. 진행형이라서 그런건가요? ㅠ.ㅠ