Match the following related to coinage in ancient India:
| A | B |
| 1. Silver bent-bars | a. Mauryan Empire |
| 2. Punch-marked coins | b. Early trade |
| 3. Metal currency | c. Achaemenid Empire |
| 4. Inland trade | d. Linked with agriculture surplus |
1
1-b, 2-d, 3-c, 4-a
2
1-c, 2-a, 3-b, 4-d
3
1-d, 2-c, 3-a, 4-b
4
1-c, 2-b, 3-d, 4-a