5. Which of the following supports the statement that erosion requires a transporting agent to carry weathered rock along? I. Dunes may be blown by the wind to other places. II. Bits of rocks are separated and fall down to a lower level because of gravity. III. After the rain, the runoff dissolves fine rock particles as it flows. A. I and II B. ll and III C. II and III D. I, II, and III