II. Measure and record the pulse and breathing rate of the subject. III. Have the test subject exercise vigorously for 1 minute, such as by running in place.
IV. Repeat Step 2.

What result would provide the strongest evidence of homeostasis in the body of the subject?
a Both pulse and breathing rate increase after exercise.
b Pulse and breathing rate remain the same after exercise.
c Pulse, but not breathing rate, increases after exercise.
d Breathing rate, but not pulse, increases after exercise.