Brainliest is up for grabs!

Which interrogative best completes the question based on the provided response?

¿___ compra la mochila?
Diana compra la mochila.

A. Cuándo
B. Quién
C. Qué
D. Cómo

Respuesta :

B is the right answer translation is who bought the backpack and the response was Diana bought the backpack
Quien. it’s the right answer