Explanation:

Rampur-Sahaswan Gharana is a vocal gharana of Hindustani classical music, known for its strong emphasis on voice culture, clarity of swaras, and intricate taans.

Correct option 1: Ustad Inayat Khan

Ustad Inayat Khan – Does NOT belong to Rampur-Sahaswan Gharana.

He was the founder of the Imdadkhani Gharana (also known as the Etawah Gharana), which is known for instrumental music, particularly sitar and surbahar.

Ustad Fateh Ali Khan – Belongs to the Rampur-Sahaswan Gharana.

Ghulam Mustafa Khan – A prominent vocalist from the Rampur-Sahaswan Gharana.

Ustad Rashid Khan – Also associated with the Rampur-Sahaswan Gharana and one of its most celebrated contemporary vocalists.