Monique and Roger will go skiing only if the temperature drops by 5 degrees Celsius. Currently, the temperature is 3 degrees Celsius. Which of the following shows how cold it must be, in degrees Celsius, for them to go skiing?

A.
3 - 5 = 3 - (+5) = 8

B.
3 - 5 = -(3 + 5) = -8

C.
3 - 5 = 3 + (-5) = -2

D.
3 - 5 = 5 - 3 = 2