Which of the following is a role of Ascorbic acid in curing?

• A. Take part in reduction of metmyoglobin to myoglobin and accelerate the rate of curing
• B. Ascorbates react chemically with nitrite to increase the yield of nitric oxide from nitrous acid
• C. Excess ascorbate acts as antioxidants and stabilizes color and flavor
• D. All of the mentioned