Henry divided his socks into five equal groups. Let s represent the total number of socks. Which expression and solution represent the number of socks in each group if s = 20? (A) StartFraction s Over 5 EndFraction; when s = 20, the number of socks in each group is 4. (B)StartFraction s Over 5 EndFraction; when s = 20, the number of socks in each group is 15. (C)s minus 5; when s = 20, the number of socks in each group is 4. (D)s minus 5; when s = 20, the number of socks in each group is 15.