Which of the following is a class in the game "Hearthstone"?

The answer is Priest because in the game Hearthstone, Priest is a class that specializes in healing and defense. The Priest class has access to a wide range of cards and abilities that allow them to restore health to their own characters and allies, as well as remove harmful effects and protect their minions from damage. They also have powerful control tools to manipulate the opponent's board and disrupt their strategies. Additionally, their unique Hero Power allows them to heal 2 health points, making them a formidable class when it comes to survivability and outlasting opponents.