By Interchanging the given two numbers which of the following equation will be correct?

1 and 6

1. $$7 - 5 + 1 \times 3 \div 6 = 20$$
2. $$1 \times 7 + 6 - 4 \div 2 = 40$$

A

Only I

B

Neither I nor II

C

Both I and II

D

Only II