Question

read the source of the allusion.
in the movie the wizard of oz, the \wizard\ isnt really a wizard at all. hes just a person who hides behind a curtain with machines that make him seem magical.
what is the meaning of the allusion in the sentence below?
ernesto acts bold and proud, but the man behind the curtain is actually nervous and fearful.
options: someone who pretends to be something he isnt; someone who prefers to spend his free time alone

Explanation:

The allusion to "The Wizard of Oz" in the sentence about Ernesto: the wizard in the movie pretends to be magical but is just a man behind a curtain. Ernesto acts bold/proud but the man behind the curtain (his true self) is nervous/fearful. This matches the idea of pretending to be something he isn't (like the wizard pretended to be magical). The option "someone who prefers to spend his free time alone" is irrelevant. So the correct option is the one about pretending to be something he isn't.

Answer:

someone who pretends to be something he isn't