Answer:
A. Su
Explanation:
Because Su literally translates to their. Tu means you/your and mi means mine/my.
If it were casas, then you just modify the pronoun to sus.
It’s C. Bc it translates to We are from New Mexico
In my class, the clock is on the blackboard. Students' desks are in front of the teacher's desk. The bin always next to the door. The teacher in front of the students. My companions and I attentive in all classes.