Which of these is an important function of salt marshes, such as the one on

the Cape Hatteras National Seashore in North Carolina?

To provide food for migratory birds.

Letter C is the correct answer.

Explanation:

Salt marshes are is a coastal ecosystem located in the upper coastal intertidal zone, between land and brackish water usually flooded by the tides. Salt marshes have an important role since they deliver food to different groups of animals.