Coastline formed by a drowned river mouth is a

A. Fjord

B. Dalmatian

C. Ria

D. Haff

Answer: Option C

Solution(By Examveda Team)

Coastline formed by a drowned river mouth is a Ria. A ria is a coastal inlet formed by the partial submergence of an unglaciated river valley. It is a drowned river valley that remains open to the sea.