If ‘$$-$$ ’ means ‘$$\div’, ‘\times$$’ means ‘$$+’, ‘\div$$’ means ‘$$\times$$’ and ‘$$+$$’ means ‘$$-$$’ what will be the value of the following expression?

$$(15 + 9 \times (4 \times 5)) - (3 \div 1) \div 2$$

A

15

B

10

C

5

D

20