Agree. because it is a right
You could say this:
Que occurio fue que cogí la gripe. Estuve enfermo durante once días.
Translation to English:
What happended was that I caught the flu. I was sick for eleven days.
The proper answer would be "va a estudiar", being it isthe only answr with the right conjugation.
Es : yo conduzco el auto por la carretera mas corta cuando voy a tu casa
