Firstly, alcohols have more boiling point compared to ethers due to hydrogen bonding.
The above two,
−OH and
−CH3 groups, both are electron donating group. If they are present at ortho or para position then the effect of
−CH3 group will not be considered as, -
OH is stronger EDG (Electron donating group) and ortho, para directing group as compare to
−CH3.
While, if
−CH3 present at
m-position then effect of both the groups will be considered and compound will have more electron density and show more boiling point.
So, the correct order of boiling points is