which feature may form as a result of erosion related to runoff? deltas gullies flood plains stalactites

Brief Explanations:

1. Deltas form from sediment deposition at the mouth of a river, not direct runoff - related erosion.
2. Gullies are small - to - large channels formed by the erosive action of runoff water cutting into soil or rock.
3. Flood plains are areas adjacent to rivers formed by sediment deposition during floods, not primarily by runoff erosion.
4. Stalactites are formed by the deposition of minerals from dripping water in caves, not related to runoff erosion.

Answer:

B. gullies