Exposure to sunlight results in formation of …. in the body? A) Vitamin A B) Vitamin C C) Vitamin K D) Vitamin D Related MCQs: Gradual exposure to actual feared situation is called: Which of the following treatments deal with phobias by gradual exposure? The process by which a substance absorbs moisture on exposure to the atmosphere is called? The process by which a substance absorbs moisture upon exposure to the atmosphere is called?