选择题
2014 AMC 8 Problem 23: Softball Uniform Numbers
Three members of the Euclid Middle School girls' softball team have 2-digit prime uniform numbers. Ashley says the sum of Brittany's and Caitlin's numbers is today's date. Brittany says the sum of Ashley's and Caitlin's numbers is her birthday earlier this month. Caitlin says the sum of Ashley's and Brittany's numbers is her birthday later this month. What number does Caitlin wear?
2014 AMC 8 第23题 ：垒球统一号码
欧几里德中学女子垒球队的三名成员有两位数的制服号码。阿什利说，布列塔尼和凯特琳的数字之和是今天的日期。布列塔尼说，阿什利和凯特琳的数字之和是她本月早些时候的生日。凯特琳说，阿什利和布列塔尼的数字之和是她本月晚些时候的生日。Caitlin穿什么号码？
A.
11
B.
13
C.
17
D.
19
E.
23