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.
It is C. Compound sentence. This is because it is far from simple, and even thought it might seem as a run on sentence, it is not, as run on sentences are sentences connected with a comma, yet this one is connected with a semi-colon, which is a correct way of connecting sentences.
This question is incomplete. Here's the complete question.
Write 3 sentences comparing the city and the countryside.
Example: The countryside is more beautiful than the city
Answer:
Outdoor activities are more available in the countryside than in the city.
The countryside offers a more peaceful environment than the city does.
Pollution in the city is worse than in the countryside.
Explanation:
In English, there are several ways to compare two things. The use of the comparative is the most common. When the adjective in question has two syllables and ends in any letter except "y", it is combined with "more".
However, irregular adjectives have rules of their own. In our example, "Bad" becomes "worse than".