Study the following graph and answer the question that follows.
Marks scored by five students (A, B, C, D and E) in three subjects (Maths. English and Physics)

What is the ratio of the marks of D’s in Maths and Physics together to the marks of B's in English and Physics?

A

14 : 13

B

7 : 14

C

9 : 14

D

2 : 7