If the temperature is 0° F and the wind is blowing at 5 mph, the wind chill factor is -5° F. If the temperature remains at 0° and the wind increases by 10 mph, the wind chill factor drops 26°. If the temperature remains the same and the wind increases by more than 10 mph, the wind chill factor drops an additional 13°. What is the wind chill factor when the temperature is 0° and the wind is blowing at 35 mph?
a. -39° F
b. -31° F
c. -44° F
d. -18° F