What is the correct revision of this sentence?
Earlier, Rick had seemed uninterested; Today, he looked downright
enthusiastic.
A. Earlier, Rick had seemed uninterested: today, he looked downright
enthusiastic.
B. Earlier, Rick had seemed uninterested, today, he looked downright
enthusiastic.
C. Earlier, Rick had seemed uninterested: Today, he looked downright
enthusiastic.
D. Earlier, Rick had seemed uninterested; today, he looked downright
enthusiastic