1 carat of diamond is equal to A. 200 mg B. 200 g C. 100 mg D. 100 g

The

correct answer is A. 200 mg.

A carat is a unit of mass used to weigh gemstones, including diamonds. It is equal to 200 milligrams (mg) or 0.2 grams (g).

The other options are incorrect. Option B is 200 grams, which is 100 times more than 1 carat. Option C is 100 milligrams, which is half of 1 carat. Option D is 100 grams, which is 50 times more than 1 carat.