"¿De quien son estos aretes?" "Son _____, señora."
a. nuestras
b. míos
c. tuya
d. mías
D?
Sorry, no way is it anything but b. "estos aretes" being masculine plural can ONLY use that same number and gender.
Sra
a. nuestras
b. míos
c. tuya
d. mías
D?
Sra