Which situation below will result in zero when the quantities are combined?
A. Sangi has $45 in his savings account and withdraws $42.
B. After riding his dirt bike, the tires lost 4 psi of air, and Derek pumps 4 psi of air back in.
C. The temperature at 4:00am was -3oF, and by noon the temperature was 5oF.
D. Art’s dog lost 5 pounds over the summer and gained 7 pounds that winter.