During the Initial Assessment of a Patient Who Complains of a Recent

During the initial assessment of a patient who complains of a recent onset of "knee pain" when descending stairs and a sense of "giving way" both on the stairs and when walking, you ask several questions about recent knee injuries.Which of the following injuries would lead you to believe the patient might have injured his ACL?

A) A forward fall onto his knee directly striking his patella
B) A blow to the inside of his knee when his dog was jumping up to greet him
C) A twisting injury when he slipped off the curb and his knee buckled inward
D) A running injury resulting in pain along the inferior border of the patella and the tibial tubercle