Name the type of vegetation grows in wet & marshy soil.  a)Grasslands    b) Mangroves        b) Cactus    d) Alpine vegetation

Mangroves

Mangroves are defined as assemblages of salt tolerant trees and shrubs that grow in the intertidal regions of the tropical and subtropical coastlines. They grow luxuriantly in the places where freshwater mixes with seawater and where sediment is composed of accumulated deposits of mud.

doctrine that the us had the right to expand throughout north america.