Explanation:

- The Vedic Aryans inhabited the Sapt-Sindhu region, which is nourished by seven rivers.

- Among these seven rivers, the Jhelum is one.

- In ancient texts, many of these rivers were referred to by different names.

- Option 1: Askini - This is the ancient name for the Chenab River.

- Option 2: Parushni - This refers to the Ravi River in the ancient context.

- Option 3: Vipash - Known today as the Beas River in the ancient texts.

- Option 4: Vitasta - This is the ancient name for the Jhelum River.