Match the following features with their agents of formation:
| Features | Agents of Formation | ||
| i. | Delta | a. | Wind |
| ii. | Loess | b. | Water |
| iii. | Moraine | c. | Ice |
| iv. | Beaches | d. | Sea waves |
1
i-b, ii-a, iii-c, iv-d
2
i-a, ii-b, iii-c, iv-d
3
i-b, ii-c, iii-d, iv-a
4
i-d, ii-a, iii-c, iv-b