Which of the Following Is True About a Delta

Multiple Choice

Which of the following is true about a delta?

A) A delta forms as channels merge and pile up sand.
B) A river keeps forming a delta in the exact same position along a coastline.
C) Deltas form some layers that are horizontal and form some that are inclined toward the ocean.
D) The total amount of sediment carried by the river increases from the start to the end of the delta system.