Which of the Following Methods Is Used to Prepare Alcohols

Which of the following methods is used to prepare alcohols?

A) They are prepared by reducing a carboxylic acid group.
B) They are prepared by adding water across a carbon-carbon double bond.
C) They are prepared by reacting a carboxylic acid derivative with a Grignard reagent.
D) They are prepared by reacting a Grignard reagent with CO₂, followed by acidification.
E) They are prepared by the nucleophilic reaction of amines with more electrophilic carboxylic acid derivatives.