Which word best replaces crevices in this sentence: "the crevices in the ice made it dangerous to walk on"?

a. machines

b. lines

c. cracks

d. snow.

The correct answer is C. The word crevice means "a narrow opening" and is often used to describe cracks in rocks or ice. In this sentence, if you replace the word "crevice" with the word "crack," the meaning remains the same. The meaning does not remain the same when the other options are substitued. Only the word "crack" means the same thing as "crevice" and keeps the meaning of the sentence the same.