Which of the following options show parallel construction?

a. “being happy,” “being sad,” and “being depressed” b. “to get rich,” “getting lazy,” and “being happy” c. “telling a story,” “being informed,” and “the end” d. “face the music,” “dancing in the rain,” and “show your stuff”

The option that shows parallel construction would be A, "being happy, being sad and being depressed".  In order to present a parallel construction, you must be sure that each part of the sentence uses the same grammatical structure. In this case, the grammatical structure used in all the phrases is the gerund (-ing form).

Being happy, being sad, and being depressed

In B two out of three phrases contain the -ing form so that is not the correct option. The same happens in C (two gerunds and one noun phrase). Finaly, in D there are two imperative sentences with the bear infinitive ("face the music", "show your stuff") and one gerund ("dancing in the rain"). Those are the reasons why A is the correct answer.

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