The answer is 2 I think don’t listen to me I’m most likely wrong but hey I’m here to help :)
When you talking to your teacher is ....
Usted
Answer: No, <u><em>lo</em></u><em> </em><u><em>compró</em></u> en una tienda.
Translation:
► Did Juan buy the ######## at the jewelry store?
► No, he bought it at a shop.
"#####" = "inappropriate words. "
<h2><em>Spymore</em></h2>