Answer the following question given this paragraph: 

Some vitamins are produced in the body. For example, vitamin D is made in the skin when it is exposed to sunlight. Vitamins B 12 and K are produced by bacteria that normally live inside the body. Most other vitamins must come from foods. Foods that are good sources of vitamins include whole grains, vegetables, fruits, and milk ( Table above ).


Q: Being exposed to sunlight will produce what vitamin in the skin?


A:
vitamin d