Balance the Half-Reaction, C₂H₆O $\rarr$ HC₂H₃O₂, Taking Place in Acidic Media

Balance the half-reaction, C₂H₆O $\rarr$ HC₂H₃O₂, taking place in acidic media. How many electrons are needed to balance the charge?Hint: Remember the coefficients when balancing half-reactions and look carefully at the oxidation numbers.

A) 2 electrons, left side
B) 3 electrons, left side
C) 4 electrons, right side
D) 6 electrons, right side
E) 8 electrons, right side