How do you answer quien es el?

You can't answer "quien es el?" directly because it's an incomplete sentence. It means "who is the...?"

To answer correctly, you need more information!

For example:

* If someone asks "Quien es el presidente de los Estados Unidos?" (Who is the president of the United States?), you would answer "El presidente de los Estados Unidos es Joe Biden" (The president of the United States is Joe Biden).

* If someone asks "Quien es el chico alto?" (Who is the tall boy?), you could answer "El chico alto es mi hermano" (The tall boy is my brother).

To answer "quien es el?" you need to know:

* What is being asked about? (What is "el" referring to?)

* Who is the subject? (Who is the person or thing being asked about?)

Let me know the full question and I can help you answer it!