Answer
Please see the work below.
Work Step by Step
We know that the correct answer is A that is the name is 2,2-dimethylbutanal
The correct answer is B that is the name is 2,2-dimethlybuanoic acid
The correct answer is C that is the name is 3,3-dimethly-2-pentanone
The correct answer is D that is the name is 2,2-dimethylbtane