It is likely that Tom picks Myrtle because he thinks she will be an easy woman to control. She is not wealthy, powerful, or socially connected, so she doesn't pose much of a threat to him. Myrtle also readily accepts Tom's fabricated story about being unable to divorce Daisy because "she's a Catholic."
That they are not real.
they are made up.
and they are in stories for children.
hope I helped
C. foreshadowing this foreshadows what is soon to come as you go deeper into the story.