With reference to tropical thorn forests in India, which of the following statements is/are correct?
I. They are found in regions with less than 50 cm of annual rainfall.
II. They are found in parts of Jharkhand.
III. Khejri and Khair are important plant species of these forests.
Select the answer using the code given below.

Tropical thorn forests are found in regions receiving less than 50 cm of annual rainfall. These forests are distributed across semi-arid areas of south-west Punjab, Haryana, Rajasthan, Gujarat, Madhya Pradesh, and Uttar Pradesh. Jharkhand is not a region for thorn forests; it is primarily covered by Tropical Deciduous forests (both moist and dry) as its annual rainfall generally exceeds 100 cm. Important plant species of tropical thorn forests include Khejri (Prosopis cineraria), Khair (Acacia catechu), Acacia, Babool, and various types of Cacti and Euphorbias. These plants exhibit xerophytic adaptations such as long roots to reach ground water and small, thick leaves or spines to minimize transpiration in arid conditions.