Coastal wetlands that feature short, gnarled trees with arching prop roots are called
a. mangrove forests.
b. kelp forests.
c. salt marshes.
d. tide pools.

The correct answer is A. Coastal wetlands that feature short, gnarled trees with arching prop roots are called mangrove forests.

Explanation:

Mangroves are various trees and shrubs that live in salt or brackish water in tropical or subtropical coastal regions with tides all over the world. Mangroves occur in different families of the seed plants division and are therefore not counted as a systematic group.

Mangroves increase the stability of the soil and their roots have a good ability to tolerate salt. Various fish species live at the roots under the mangrove water. Mangroves occur on the coast, mainly at the estuaries.