How many of these are examples of collisions, assuming they occur over a short period of time?
-A giraffe chewing a leaf
-A dog scratching on the door
-A log burning
A. A giraffe chewing a leaf
B. A giraffe chewing a leaf and a dog scratching the door
C. A giraffe chewing a leaf, a dog scratching the door, and a log burning
D. None of the above
D. None of the above
None of these actions involve objects physically colliding with each other.