Using the vowel with no other markings.
Answer:
The irony about Jen's step-dad working for the Population police is that he broke the rule of the Population Police of having two children, by having a third child, and yet working for the organization.
Explanation:
'Among the Hidden' is a novel written by Margaret Peterson Haddix. The novel is about a society, where the Population Police has prohibited families for having more than two children.
Jen, just like Luke, is a third child in her family. Jen's mother had two sons before Jen, but she decided to have a girl on purpose, so they bribed the doctor and had Jen as a third child. The irony about Jen's step-dad working for the Population Police is that he broke the rule of having two children by having a third child, yet he is working for the Population Police. He is working for the organization, whose rule he has broken, so this is the irony.
Yes, making choices on their own is important to how people live and their independence. It gives them a sense of value and ownership to their own thoughts, emotions, and decisions in life.
That's the best I got for an answer.