For this case we must indicate an appropriate response that can be used when a student meets his new teacher. It should be noted that whatever the answer, you must show respect. Then, we have the following options:
¿Cómo te llamas? (What is your name?)
¿Cuál es tu nombre? (What is your name?)
¿Cómo estás? (How are you?)
¿Cómo se llama usted? (What is your name?)
The first three answers are more informal, for example, they can be used when you meet a new friend. The fourth sentence denotes more respect, it is generally used to talk formally with a person.
ANswer:
Option D