What is the main or central idea of "The Neglected Senses"?
a. To fully appreciate the world, we need to use all of our senses, not just sight.
b. Blindness is a serious limitation in navigating our world, but there are ways to get by.
c. Although sight is a useful sense, the other senses can give us more accurate information about the world.
d. Blind people cannot see, but by developing their other senses, they can get some limited information about the world.