40. The graph below represents the thermostat settings of a house in a 24-hour period. If the homeowner wants to reprogram this so that it starts 3 hours earlier and is always 5 degrees warmer, which equation would he use to reprogram the thermostat? T [A] (1)=(+3)+5 [B] (1)=(-3)+5 [C] 8 (1)= f(r+5)+3 [D] (1)=(1+3)-5 80 70 60 Temperature (in F) 50 0 3 6 9 12 15 18 21 24