Parallelism can be defined as:


a.
clarifying main ideas through language choice and sentence structure.

b.
the process of revising two works simultaneously.

c.
varying the length and structure of sentences.

d.
using similar grammatical form for similar elements of meaning

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The correct answer is: d. using similar grammatical form for similar elements of meaning.

To determine the correct answer to this question, we can break down each of the options and analyze them.

a. Clarifying main ideas through language choice and sentence structure: While this option describes one aspect of effective writing, it does not capture the essence of parallelism as a whole. Parallelism is not solely focused on clarifying main ideas.

b. The process of revising two works simultaneously: This option describes a technique used in the writing process but is unrelated to the concept of parallelism.

c. Varying the length and structure of sentences: Again, while this option describes an element of good writing, it is not synonymous with parallelism. Parallelism does not specifically require varying sentence length and structure.

d. Using similar grammatical form for similar elements of meaning: This description best aligns with the concept of parallelism. Parallelism is the use of similar grammatical structure or form for similar ideas or elements. It brings balance and consistency to writing by creating parallel structures within a sentence or across a paragraph.

Therefore, the correct answer is option d: using similar grammatical form for similar elements of meaning.