What is the compound subject of the sentence? Seals and penguins live in Antarctica. A. Seals live B. Seals C. Seals and penguins live D. Seals and penguins

The correct answer is D. Seals and penguins.

Explanation:

In every sentence that refers to an action carried out by one or more people, animals, things, etc., the subject is who or who performs the action, while the predicate is the verb and the components of the sentence that relate to it. Therefore, since the sentence is performed by the seals and penguins, this option is the correct option.

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- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."