7 + 2[ - 8 - {-3 - (-2 - 3)} - 4] এর মান কত?

A -15

B -18

C -21

D -24

Correct Answer: Option C

7 + 2[ - 8 - {-3 - (-2 - 3)} - 4]
= 7 + 2[ - 8 - {-3 - (-5)} - 4]
= 7 + 2[ - 8 - {-3 + 5} - 4]
= 7 + 2 [- 8 - 2 - 4]
= 7 + 2 [ - 14]
= 7 - 28
= -21