How can one account for the fact that the carbon-oxygen single bond of acetic acid is shorter than the carbon-oxygen bond of ethanol? A) The carbon in the alcohol is sp2 hybridized and has a higher percent s-character that lengthens the C-O bond in the alcohol. B) The carbon in the carboxylic acid is sp3 hybridized and has a lower percent s-character that shortens the C-O bond in the carboxylic acid. C) The carbon in the carboxylic acid is sp hybridized and has a higher percent s-character that shortens the C-O bond in the carboxylic acid. D) The carbon in the carboxylic acid is sp2 hybridized and has a higher percent s-character that shortens the C-O bond in the carboxylic acid. E) The carbonyl oxygen withdraws electron cloud density which tends to pull the C-O single bond of a carboxylic acid closer to it.