The correct answer is: A. Traitor.
A traitor is a person who betrays their country, friends, or cause. They are often motivated by greed, revenge, or a desire to gain power. Traitors can cause great harm to the people they betray, and they are often seen as the lowest of the low.
A cheat is a person who breaks the rules of a game or competition in order to gain an unfair advantage. Cheats are often motivated by a desire to win at all costs, even if it means breaking the rules. Cheats can ruin the game for everyone else, and they are often seen as untrustworthy and dishonest.
A hypocrite is a person who says one thing but does another. Hypocrites are often motivated by a desire to appear better than they really are. Hypocrites can be very damaging to society, as they undermine trust and confidence.
A disloyal person is someone who is not faithful or trustworthy. Disloyal people are often motivated by self-interest, and they may betray their friends, family, or country for their own personal gain. Disloyal people can cause great harm to the people they betray, and they are often seen as untrustworthy and unreliable.
In conclusion, the correct answer to the question “A person who betrays a friend” is A. Traitor.