What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

A is weathering B doesnt make much sense to me C if too much water is exposed into soil it would most likely become clay and D a rock is a mineral not a chemical substance, from this comment decide what sounds right

Answeroil-shale;