Joshua has invented a special greenhouse. By turning a special dial in his new greenhouse, Joshua can choose which type of sunlight can enter the greenhouse. When only ultraviolet light is allowed to enter the greenhouse, what will happen while Joshua is standing inside the greenhouse? A. Joshua can see objects inside the green house.

B. Joshua can see objects outside the greenhouse.

C. As time passes, Joshua begins to sunburn.

D. As time passes, it becomes warmer inside the greenhouse than it is outside.