By Interchanging the given two numbers which of the following equation will be correct?
8 and 4

A

$$4 + 8 \times 2 - 3 = 20$$

B

$$4 \div 2 + 8 \times 3 = 16$$

C

$$4 + 3 \times 8 - 2 = 21$$

D

$$8 - 4 + 6 = 9$$