Okay so i was at my friend Kendra 's house with my friend sam . We were playing around like always , and then Kendra pounced on me and her knee landed right on my ribs . At the moment i could not breathe and i was on the ground trying to mouth help me .

Question: Why could I not breathe ?
Answer: None of the above choices .Because I was on the ground .Because I just received an impact on my chest .Because my friend is Kendra .