Answer
Please see the work below.
Work Step by Step
We know that the correct answer is A that is the name is 2-ethyl-1-pentanol
The correct answer is B that is the name is 4-methyl-1-pentanol
The correct answer is C that is the name is 3-methyl-2-pentanol
The correct answer is D that is the name is 2-methyl-1-butanol