"Margarita e Inés, ¿quién es____profesora de matemáticas?"
"La señorita Hernández es nuestra profesora."
a.su
b.tu
c.mi
d.nuestro
B?
You are speaking to 2 girls so you must choose a plural one. "su" goes with "your = plural" in this case.
Sra
Thank you!
Again, you are most welcome.
Sra