The correct answer is (a) Talaon.
Talaon is a type of irrigated land in Uttarakhand. It is a small, flat area of land that is surrounded by hills. Talaon is usually used for growing crops, such as rice, wheat, and maize.
The other options are incorrect.
(b) Upraon is a type of unirrigated land in Uttarakhand. It is a large, hilly area that is used for grazing animals.
(c) Katil is a type of forest land in Uttarakhand. It is a dense, wooded area that is home to a variety of animals, such as tigers, leopards, and elephants.
(d) Izran is a type of barren land in Uttarakhand. It is a dry, rocky area that is not suitable for agriculture or grazing.