The regioselectivity and stereospecificity in the reaction of an alkene with Hg(OAc)2 and water (the oxymercuration of an alkene) is best described as
◦ Markovnikov orientation with both syn- and anti-addition.
◦ anti-Markovnikov orientation with anti-addition.
◦ Markovnikov orientation with anti-addition.
◦ anti-Markovnikov orientation with syn-addition.
◦ Markovnikov orientation with syn-addition.