Which sentence contains correct parallel structure?

at the pre-school, they teach children to speak polite, walk slow, and act fairly.

at the pre-school, they teach children to speak with politeness, walk slowly, and act fair.

at the pre-school, they teach children to speak politely, walk slowly, and act fairly.

at the pre-school, they teach children to speak polite, walk slowly, and act fair.

At the pre-school, they teach children to speak politely, walk slowly, and act fairly.

Explanation:

Three verbs speak, walk, and act are respectively modified by the adverbs politely, slowly, and fairly.

This is correct parallel structure.    

you didn't provide the passage.

explanation:

seeing as this is your first question on i can see why you may have not known that you need to provide the passage.

without the passage, or even the name of the passage, we can not read the passage, therefore we can not determine when or how the pacing effects the tone.

however, you can either repost this question (providing the passage this time)

or you can comment below what the passage is, and i'll you to the best of my ability!