A block rests on a horizontal surface and a man pulls it with a 10N force. Rank the situation shown below according to the magnitude of the normal force exerted by the surface on the block, least to greatest.
| A. |
1, 2, 3 |
| B. |
2, 1, 3 |
| C. |
3, 2, 1 |
 |
| D. |
1, 3, 2 |