The statement "As they smiled and gurgled at the moving mobile" (line 7, para. 2) suggests
The statement "As they smiled and gurgled at the moving mobile" (line 7, para. 2) suggests that ______.
A.the infants liked the beautiful color of the mobile although they couldn't say so
B.the infant were happy because the cribs were very comfortable to sleep in
C.the infants realized the connection between the motion of one leg and the bobbing of the mobile
D.the infants wanted to grasp the bobbing mobiles and keep them