Which of the following choices distinguishes an oxbow lake from a deep meander? (1 point)
A: A deep meander forms over soft rocks that are easily eroded. An oxbow lake forms where the river meets the ocean.
B: A deep meander is formed by erosion. An oxbow lake is formed by deposition.
C: A deep meander forms near the source of a river where water is fast-moving. An oxbow lake forms near the mouth of a river where water is slow-moving.
D: Water from a river flows through a deep meander. An oxbow lake is cut off from the river and contains still water. .