Question

¿Tú ____________________ (subir) por la escalera o en el ascensor? a. subeste c. subiste b. subaste d. subes

Answer 1

The answer is C. subista

Answer 2

¿Tú subiste por la escalera o en el ascensor?

Why subiste?

Subeste, nope, nope, no, this isn't a word in Spanish. This is how we know this one is wrong.

Subaste? Not a word either. This is crossed out.

Subes, This is a word but it's stating something instead of asking a question. "Tú subes por las escaleras = You climb/ go up the stairs".

So subiste is the right one!

Hope this helps!~