| A | Duarte Barbosa | (I) | Morocco |
| B | Marco Polo | (II) | Spain |
| C | Ibn Battuta | (III) | Portugal |
| D | Antonio Monserrate | (IV) | Italy |
To resolve this issue, a precise correlation between explorers from List-I and their nations of origin from List-II is required.
Examination of the names reveals:
These historical associations lead to the following accurate pairings:
Consequently, the definitive solution is: (A) - (III), (B) - (IV), (C) - (I), (D) - (II).