The correct answer is: c) Pahari.
Pahari is a group of Indo-Aryan languages spoken in the Himalayas, primarily in the Indian states of Himachal Pradesh, Uttarakhand, Jammu and Kashmir, and the Pakistani province of Azad Kashmir. It is closely related to Dogri, Punjabi, and Hindi.
Kangri is a dialect of Pahari spoken in the Kangra district of Himachal Pradesh. It is closely related to the other dialects of Pahari spoken in Himachal Pradesh, such as Chambial, Jaunsari, and Sirmauri.
Punjabi is an Indo-Aryan language spoken in the Punjab region of India and Pakistan. It is the 11th most spoken language in the world by number of native speakers, and the 3rd most spoken language in the Indian subcontinent. Punjabi is closely related to Hindi, Dogri, and other Pahari languages.
Garhwali is a dialect of Pahari spoken in the Garhwal region of Uttarakhand. It is closely related to the other dialects of Pahari spoken in Uttarakhand, such as Kumaoni and Jaunsari.
In conclusion, the language closely related to Dogri, spoken in Himachal Pradesh, is Pahari.