Final answer:
The subject of a sentence is the person, place, thing, or idea performing the action or being described. Without explicit parentheses in the question, we can deduce that the sentence with the subject directly performing an action is option C, where 'The tiny baby ducklings' are following the mother duck down the road.
Step-by-step explanation:
To determine which sentence contains the subject within parentheses, one must first understand that the subject of a sentence is the person, place, thing, or idea that is performing the action or being described. Now, let’s examine the options:
A) The president of the United States must be on call twenty four hours a day.
B) Lucille, who is Rachel's sister, couldn't make it to the party.
C) The tiny baby ducklings followed the mother duck while on the road.
D) Freddie said that his crazy little puppy chewed up his homework.
When we look for the sentence where the parenthesized words are the subject, we notice that the original question does not contain any parentheses. However, based on the typical structure of questions like this one, we must assume there is a formatting error, and we should look for the noun or pronoun that serves as the subject in each option:
In option A, “The president of the United States” is the subject.
In option B, “Lucille” is the subject.
In option C, “The tiny baby ducklings” are the subject.
In option D, “Freddie” is the subject of the main clause.
Without parentheses to guide us, the answer could be any of these four options. However, based on providing an answer to the student, the correct option, as it discusses a subject directly performing an action, would be option C: The tiny baby ducklings followed the mother duckling down the road.