The other name for gamemaster is <u>E. instructor</u>.
<h2>Explanation:</h2>
The gamemasters are expert in the games but they usually administrate the players, so the correct name designated for the gamemasters is instructor.
In online games, the gamemasters work as administrator or moderator in multiplayer games. They are used to find the people who play unfairly in the automated world.
Now-a-days, they also play as a representative of customer services for the gaming software applications. They use some of the special tools in the games and special software to trace the activity of the players.
I would say the answer is D. Both A and C because when it gets cold, the tires tend to become flat . You should also check once a month to make sure everything is fine especially after driving for a while!