Context: Porter is baking a pie. He notices that the crust burns before the pie is fully cooked. He wonders what factors affect whether a pie crust will burn in the oven. So, he decides to design an experiment. He has the following supplies available:
ingredients for pumpkin pie filling
ingredients for apple pie filling
two pie crusts made with white flour
a glass pie pan
an aluminum pie pan
an oven
Using only these supplies, which question can Porter investigate with an experiment?
A. Does a pie crust made with white flour burn more quickly when the pie is cooked in a glass pan or in an aluminum pan?
B. Do pie crusts made with white flour burn less quickly when covered with aluminum foil or when left uncovered?
C. Does a pie crust made with white flour burn more quickly than a pie crust made with whole wheat flour?
Select the correct answer from the given choices and respond with the letter of the chosen option.

A