Complete the sentence below about vitamin A. _______________ is a form of vitamin A that plays an important role in vision. Vitamin A is important for many functions in the body. It plays a critical role in vision, helping you see images and differentiate colors, and also contributes to cell differentiation. Complete the sentence below about vitamin A. _______________ is a form of vitamin A that plays an important role in vision. Beta-carotene Retinoic acid Retinal Provitamin A