Which of the following is the best reaction sequence to use if one wants to accomplish a Markovnikov addition of water to an alkene with minimal skeletal rearrangement?

A) water + dilute acid
B) water + concentrated acid
C) oxymercuration-demercuration
D) hydroboration-oxidation
E) none of the above

Oxymercuration-demercuration is the best reaction sequence to accomplish a Markovnikov addition of water to an alkene with minimal skeletal rearrangement. It adds a mercuric acetate (Hg(OAc)2) and water to the double bond, forming a mercurinium ion intermediate that reacts with water to form an alcohol. The demercuration step removes the mercury atom and regenerates the alkene. This reaction sequence avoids rearrangements and produces a Markovnikov product.