The pie chart given below shows the expenditure incurred by a person on 7 articles. The total expenditure of all These 7 articles is 720. Expenditure incurred on a particular article is shown in terms of degree with respect to the total expenditure incurred in all these 7 articles.

What is the ratio of expenditure incurred on article A2 to expenditure incurred on article A7?

A

2 : 3

B

3 : 4

C

4 : 3

D

5 : 3