Asokan inscriptions in the North-West of the subcontinent were written in which of the following languages?

Aramaic

The correct answer is Option (3) → Aramaic

Most Asokan inscriptions were in the Prakrit language while those in the northwest of the subcontinet were in Aramaic and Greek. Most Prakrit inscriptions were written in the Brahmi script; however, some, in the northwest, were written in Kharosthi. The Aramaic and Greek scripts were used for inscriptions in Afghanistan.

So, the correct option is [3].