Elrod Is Sitting at Home Trying to Read Maps for His

Elrod is sitting at home trying to read maps for his upcoming vacation. He has difficulty making out the details of the map in the light of the 60-watt ceiling lamp. To improve his ability to see the fine details of the map, he should ________.

A) hold the map farther away than he normally would, as visual acuity in dim light improves as objects get farther away
B) look slightly off to the side when reading his maps, as visual acuity in dim light improves when the light falls outside the fovea
C) blink a lot, because frequent blinking improves visual acuity
D) turn on a brighter light, because visual acuity tends to improve as the amount of light increases toward daytime levels