La respuesta es A mi maestro le gusta escribir en la pizarra
Hello!

The subject of this sentence is "Yo" (I), so we must use the first-person singular conjugation.
Thus, the correct conjugation ends with an "o", or "Pruebo". Choice A is the correct answer.
Answer:
Nosotros comos estudiantes de espanol
Maria es la amiga de Chuy
es martes means is monday, so when you are talking about someone or multiple people you don't say "we are monday" :):)