The sums of three whole numbers taken in pairs are 12,17 , and 19 . What is the middle number?

**Answer Choices**

A. 4

B. 5

C. 6

D. 7

E. 8

The sums of three whole numbers taken in pairs are 12,17 , and 19 . What is the middle number?

**Answer Choices**

A. 4

B. 5

C. 6

D. 7

E. 8