Based on this diagram of a river, in which ofthese sections are erosion and sedimentationprocesses dominant?
(A) erosion in 2 and 4; sedimentation in 1 and 3
(B) erosion in 1 and 4; sedimentation in 5
(C) erosion in 3; sedimentation in 7
(D) erosion in 7; sedimentation in 8
