What is meant by blindsight?

a. Some people with damage to the primary visual cortex accurately guess the location or other properties of objects they say they don’t see.

b. Blind people learn to find their way around by making sounds and listening for echoes.

c. Blind people on average develop enhancements of hearing, touch, and other senses.

d. After damage to the eyes, other body parts become sensitive to light.

e. Incorrect hindsight.