The correct answer is: Achaemenid Persians.
The Achaemenid Persians were the first to apply the name “India” to the region watered by the Sindhu River. The name “India” comes from the Sanskrit word “Sindhu,” which means “river.” The Achaemenid Persians conquered the Indus Valley in the 6th century BC and named the region “India” after the Sindhu River.
The British, Portuguese, and Dutch were all European powers that colonized India in the 16th, 17th, and 18th centuries, respectively. However, none of these powers were the first to apply the name “India” to the region.
The Achaemenid Persians were the first to apply the name “India” to the region watered by the Sindhu River. The name “India” comes from the Sanskrit word “Sindhu,” which means “river.” The Achaemenid Persians conquered the Indus Valley in the 6th century BC and named the region “India” after the Sindhu River.