What is a tropical rain forest? a. a densely wooded area that receives an annual rainfall of at least 100 inches and has broad-leafed evergreen trees that form a continuous canopy b. territory located adjacent to a coastal plain that has low humidity and numerous trees c. a large cluster of wide-leafed trees with blossoms that appear in the spring, last through the summer, and then drop in the fall when it rains d. a place with low growing shrubs and other plants that benefit from daily rainfall