If ‘$$\div$$’ means ‘+’, ‘-’ means ‘$$times$$’, ‘+’ means ‘-’ and, ‘$$times$$’ means ‘$$\div$$’, then which of the following equations is correct?

A

$$42 \times 28 - 30 \div 48 + 45 = 45$$

B

$$42 \times 28 - 30 \div 48 + 45 = 50$$

C

$$42 \times 28 - 30 \div 48 + 45 = 48$$

D

$$42 \times 28 - 30 \div 48 + 45 = 40$$