An ox-bow lake is Single choice. a. A horse shoe shaped lake

b. A lake that the river flows in to

c. A lake in the uper course of a river

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I think option C is correct answer of this question

hope it helps

Perhaps B. Although no answer fits the description of an ox-bow lake.

Explanation:

An oxbow lake is a U-shaped lake that forms when a wide meander of a river is cut off, creating a free-standing body of water. In south Texas, oxbows left by the Rio Grande are called resacas. In Australia, oxbow lakes are called billabongs. The word "oxbow" can also refer to a U-shaped bend in a river or stream, whether or not it is cut off from the main stream.