题目信息
Jane and Bob are currently x and 13 years old, respectively, where x is an integer. If Jane is older than Bob, what is the minimum value of x such that the sum of Jane's and Bob's ages has a units digit that is greater than the units digit of Bob's age?
A:11
B:14
C:17
D:18
E:21
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正确答案：
B:14
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