Which two numbers from amongst the given options should be interchanged to make the given equation correct?
$$\left(42 \div 7\right) \times 5 = 30 \times 120 \div \left(10 + 5 \times 2\right)$$

A

10 and 5

B

2 and 5

C

7 and 2

D

10 and 30