Respuesta :
When talking to anyone that has an occupation like a teacher (so teachers, doctors etc.) You always use the formal conjugation of that word. So the answer is Usted
Based on the fact that it is your teacher that you wish to address, the correct form is Usted.
When is "Usted" used?
Usted is the formal form of the word, "you" in English which means that is is best used when addressing people you do not have informal relationships with.
This includes people like your teacher, a stranger, or a person who you have to address by their title and last name.
Find out more on using "usted" at https://brainly.com/question/32136.
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