The sentence that maintains parallelism is option D) “Gilb writes from his perspective as a Mexican-American, a parent, and a Southwesterner”. Parallel structures bring coherence to a text by using the same grammar pattern when listing things. In this example, the grammar structure that is used to reflect parallelism is a noun after the word “as” such “Mexican-American”, “a parent” and “a Southwesterner”. In the rest of the options there is a break in the grammar pattern since they do not follow the same structure as in option C) that starts by listing with nouns “Mexican-American” and “parent” but then it uses verb to be+ing and a prepositional phrase.
Parallel structures are useful writing resources since the reading experience for the reader is smoother and easier to understand.
