Which choice contains both correct use of parallel structure and proper placement of commas?

A) I wanted to be quick, thorough, precise, and correct.

B) I wanted, to be quick, thorough, precise, and correct.

C) I wanted to be quick, thorough, precise, and not to make errors.

D) I wanted, to be quick, thorough, precise, and not to make errors.

A) uses correct comma placements and parallel structure.

A.

Explanation:

Parallel structure or parallelism is the repetition of the same pattern of words in the same manner to emphasize the importance of all words. A particular grammatical form is chosen to compare the words.

For example,

I like dancing, singing and reading. I like to dance, sing and read.

A particular grammatical form of parallelism and commas usage that's been applied in the sentence is in option A.

So, the correct option is Option A.