Four of the following five parts numbered (1), (2), (3), (4) and (5) are exactly equal. The number of the part, which is not equal to the other four parts, is your answer.

A

$$45 \times 12 + 60$$

B

$$80\% of 800 - 40$$

C

$$\frac{3}{5} of 1200 - 150$$

D

$$1260 \div 3 + 180$$

E

$$8640 \div 16 + 60$$