Directions: There are 5 different Buildings A, B, C, D and E and the number of Total number of floors and number of vacant floors given. Read the graph carefully and answer the given questions

Total Number of floors = Number of Vacant Floors + Number of Occupied floors
Find the difference between the total number of occupied floors of building B and C together and that of buildings D and E together.

Options

A. 90
B. 110
C. 40
D. 60