The numbers from 1 to 8 are placed at the vertices of a cube in such a manner that the sum of the four numbers on each face is the same. What is this common sum?

**Answer Choices**

A. 14

B. 16

C. 18

D. 20

E. 24

The numbers from 1 to 8 are placed at the vertices of a cube in such a manner that the sum of the four numbers on each face is the same. What is this common sum?

**Answer Choices**

A. 14

B. 16

C. 18

D. 20

E. 24