Here's why:
* Compound subjects are two or more nouns or pronouns joined by a conjunction (usually "and" or "or"). They act as a single unit, performing the same action.
* The verb in the sentence must agree with the compound subject in number (singular or plural).
* The answer will be determined by the action being performed by the compound subject.
Example:
* Sentence: "The dog and the cat played in the yard."
* Compound Subject: "The dog and the cat"
* Verb: "played" (plural, agreeing with the compound subject)
* Answer: The sentence describes a joint action – both the dog and the cat playing. The answer could be "They played in the yard" or "The dog and cat played in the yard."
Here are some other scenarios:
* If the sentence is a question: The answer would be a direct answer to the question, focusing on the action of the compound subject.
* If the sentence is a statement: The answer would be a statement providing additional information about the action or the subjects involved.
To get a specific answer, please provide me with the complete sentence.