Correct Option
- Markha Valley (A) is located in the Ladakh region, which was part of Jammu & Kashmir (3) at the time the question was framed. It is a prominent trekking destination.
- Dzukou Valley (B) is situated on the border of Nagaland (4) and Manipur, near Kohima. It is known for its seasonal wildflowers.
- Sangla Valley (C) is found in the Kinnaur district of Himachal Pradesh (2). It is characterized by apple orchards and the Baspa River.
- Yumthang Valley (D), also referred to as the 'Valley of Flowers', is located in North Sikkim (1), adjacent to the Lachung River.
Thus, the correct match is A-3, B-4, C-2, D-1.
Incorrect Options
Options 1, 2, and 3 contain one or more incorrect pairings between the valleys and their respective states. Therefore, they do not represent the correct answer.