A class of students conducted an experiment to determine the effect of exercise on aerobic respiration. They used a solution of bromthymol blue (BTB) to measure carbon dioxide (CO2) production because CO2 causes BTB to turn from blue to yellow. First, they measured how long they needed to blow through a straw into a test tube filled with a BTB solution for the solution to turn from blue to yellow. Then, each student exercised for 2 minutes and measured the time for color change to occur in another test tube. What is the MOST LIKELY result of this experiment?
A
The solution would turn yellow more slowly after exercise.

B
The solution would turn yellow more quickly after exercise.

C
The solution would change color at the same rate before and after exercise.

D
The solution would not turn yellow because CO2 is a reactant of respiration.