Which one of the following passes is not in Arunachal Pradesh?

Kumjawng Pass, Yangyap Pass and Bomdi La are all located in Arunachal Pradesh — Kumjawng and Yangyap in the eastern Himalayas of Arunachal, and Bomdi La in the West Kameng district. Muling La (Mu Ling La), however, is a pass located in Uttarakhand, on the India–Tibet (China) border in the Chamoli district, not in Arunachal Pradesh. Hence Muling La is the odd one out.