Answer:
d. meander scar
Explanation:
Meander scar is the name given to a stream that flows from a floodplain of a larger river. As it flows, it is possible to see this stream swaying tirelessly in all directions giving rise to a series of sinuous and regular curves, creating a watercourse. The meander scar can also originate from a floodplain that changes its channel within a valley.
