Identifying the tertiary alcohol

Steps:

• Examine each alcohol's structure to determine the carbon atom bonded to the OH group.
• Count the alkyl groups attached to that carbon: primary (1), secondary (2), tertiary (3).
• Option A has the OH on a carbon with 1 alkyl group (primary).
• Option B has the OH on a carbon with 3 alkyl groups (tertiary).

Why B is correct:

• Tertiary alcohols have the OH group attached to a carbon bonded to three other carbons, as in B's branched structure.

Why the others are wrong:

• A: Primary alcohol (OH on end carbon with one alkyl group).
• C: Secondary alcohol (OH on carbon with two alkyl groups).
• D: Primary alcohol (straight-chain with OH on terminal carbon).

Not enough information on exact structures, but assuming standard classification.

Final answer: B