Glaciers form when the snow, sleet, and hail that fall in a given climatic region exceed the amount capable of being lost through evaporation or melting.

(A) the snow, sleet, and hail that fall in a given climatic region exceed the amount capable of being

(B) a given climatic region's fallen snow, sleet, and hail exceeds the amount able to be

(C) the amount of snow, sleet, and hail that falls in a given climatic region exceeds the amount

(D) the snow, sleet, and hail falling in a given climatic region exceeds the amount able to be

(E) a given climatic region exceeds the amount of snow, sleet, and hail that falls and cannot be