I would say the correct answer is B. immoral.
The word impious means that you aren't showing respect to God, the respect he deserves. So when you are impious, it means you are disrespectful towards God, meaning you are acting in an immoral way, because God is the epitome of morality and everything good.
Alrighty, so, you're currently trapped inside a cottage with a witch who wants to eat you and your brother. What do you do to escape? Do you beat the witch with her own broom and make a run for it? Do you push her into the oven (This is what happens in the story) and lock her in so that she burns up, then you and Hansel make a great escape? What do you do? (:
Imperative is when you are giving a command
Interrogative is when you are asking a question
Declarative is when you are declaring something
Exclamatory shows a form of expression
Patient best shows personification.