To interpret the metaphor in the excerpt, readers should connect what they know about amusement parks to determine how much fun Isaac’s friends had at his house. the number of rides Isaac had inside his house. how many people Isaac invited over to his house. the way that Isaac’s parents decorated his house.

the correct answer is 4) infinitive phrase with a direct object

the explanation is that the infinitive phrase, "to with the younger children", functions as the object. it means the thing that the subject does.

1) no infinitive is incorrect because there is an infinitive verb in the sentence.

2) an infinitive only is incorrect because it is not in isollation. it is part of an infinitive phrase.

3) infinitive phrase with a subject is incorrect because in this example the infinitive phrase does not function as the subject doing the action of the sentence.

he argues that crayons are very important