Alex is conducting an experiment to test the reflectivity of various materials. He has a LED flashlight that has been placed into a hole in a large index card. He shines the flashlight directly at objects at a distance of 4 cm. If he sees that the card is very illuminated, then he knows that the material has a high reflectivity. He records his observations in his data table. Based on Alex’s data, which material absorbs light the best?
A. red construction paper
B. black construction paper
C. flat aluminum foil
D. wrinkled aluminum foil