源源和苹苹去买糖，源源买69块，如果她给苹苹7块，她们两个人的糖数就相等了，苹苹买了多少块糖呢？

The discovery of new evidence led to _____. [ ]

A. the thief having caught

B. catch the thief

C. the thief being caught

D. the thief to be caught