The correct answer is: B. 1500 to 3300 m.
Himalayan Moist Temperate Forests are found at an altitude between 1500 and 3300 m. These forests are characterized by a warm, moist climate with an average temperature of 15-20 degrees Celsius and an annual rainfall of 1000-2000 mm. The forests are dominated by broad-leaved trees, such as oak, maple, and chestnut. The forests are also home to a variety of animals, including deer, wild boar, and monkeys.
Option A is incorrect because Himalayan Moist Temperate Forests are not found at an altitude of 1000 to 1500 m. Option C is incorrect because Himalayan Moist Temperate Forests are not found at an altitude of 2000 to 3500 m. Option D is incorrect because Himalayan Moist Temperate Forests are not found at an altitude of 3000 to 4000 m.