which sentence contains a split infinitive? young children seem to thoroughly enjoy playing with soap bubbles and shaving cream. it is important to give children opportunities to explore their world through sensory experiences. clay and finger paints are often used to prepare children for writing and drawing. going to preschool opens the door to learning and encourages kindergarten readiness.

i believe it is the first choice (1.)

because the major theme is(“both the wild and civilization have rules.”)

and also as u said,( based on what buck learns within the call of the wild, "both the wild and civilization have rules".this is true of humans within society as well.

during my first experiment, a kind of enthusiastic frenzy had blinded me to the horror of my employment . . my eyes were shut to the horror of my proceedings (230).

apex