The prepositional phrase "when they made a table for the family room" modifies the verb "helped," providing details about the timing and purpose of Jerry's dad's assistance in the sentence.
The correct answer is option C.
In the sentence "Jerry's dad helped him use the bandsaw when they made a table for the family room," the prepositional phrase "when they made a table for the family room" modifies the verb "helped." The phrase provides additional information about the circumstances or context of the action. It tells us when the help occurred and what they were doing at that time.
Correct Answer: A. helped
The prepositional phrase "when they made a table for the family room" acts as an adverbial phrase, specifying the timing and purpose of the assistance provided by Jerry's dad. It describes the situation in which the help was given, indicating that it took place during the activity of making a table for the family room.
Therefore, from the given options the correct one is C.