What do chinchillas eat in the wild?

Two of the choice were plants and seeds. Since both are listed in the answer, would either have been accepted as right?

shivam, I didn't get an all of the above choice just four plants,seeds,mushrooms or fish .how odd that they are worded different for some players.

I used to have some chinchillas. It is mostly the females that will stand up on their hind legs and spray you with urine. I had one girl who was especially bad for that. I called her Mitten because I would threaten to turn her into a mitten if she kept spraying on me.

Bad choice of answers

They are beautiful animals and should not be harvested for their fur.

Kat, I agree. the explanation does indeed go on to state that in the wild they eat plants and seeds

how is it that the answer indicates that they eat seeds yet seeds is wrong?