In due course of time the meander loop cuts off from the river and forms a cutoff lake, also called an ________ lake.

Answer: Option A

An oxbow lake is formed by both erosional and deposition actions of a river. In lower course a river dominates in lateral erosion and bend is created by it. On outer end of bend erosion dominates and on inner end deposition dominates and finally a loop is separated known as oxbow lake.