33. Rank the following compounds according to increasing solubility in water.

I. CH₃–CH₂–CH₂–CH₃ II. CH₃–CH₂–O–CH₂–CH₃ 

III. CH₃–CH₂–OH        IV. CH₃–OH
(A) I < III < IV < II
(B) I < II < IV < III
(C) III < IV < II < I
(D) I < II < III < IV
(E) None of these (A-D) is correct.

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