Show the products of the first step of the following reaction. Explain why the stereoselectivity of the oxymercuration step becomes insignificant after the reduction step. 

• A. The reduction step reduces the carbon atom in the C-Hg bond, resulting in the loss of chirality at the carbon previously bearing the —HgOAc substituent. 
• B. The reduction step occurs in a concerted manner, preserving the stereochemistry of the intermediate.
• C. The reduction step occurs in a concerted manner, preserving the stereochemistry of the intermediate.
• D. The reduction step reduces the carbon atom in the C-Hg bond, resulting in the loss of chirality at the carbon previously bearing the —HgOAc substituent. 

Answer: (A)