Which Methods Can Be Used to Prepare Alcohols

Which methods can be used to prepare alcohols?
I.addition of H₂O to alkenes in the presence of H₂SO₄
II.reacting alkanes with a concentrated solution of CH₃OH
III.hydrolysis of alkyl halides
IV.methanol can be prepared from CO(g) and H₂(g) in the presence of a heterogeneous catalyst
V.removing one oxygen atom from a carboxylic acid

A) I,IIand IV
B) I,III,and IV
C) II,III,and V
D) I,II,and V
E) II,IVand V