To start with, it is necessary to take into account that the prefixes are letters that are situated at the beginning of a word, changing the word's original meaning: Therefore, the prefixes re, dis, un, and al have different meanings. To answer this question it is necessary to understand the meaning of each one:
- Re: Again, back.
- Dis: Away, separate, not.
- Un: Not, revesal of.
- Al: Is a suffix whose meaning is related to or like, but it is no a prefix; thus, this option can be discarded.
Therefore, the appropriate answer is A: re because they are going to paint the house again, so they are going to repaint the house. So, the meaning of "Repaint" is the act of paint something again.