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. (1 point)

Responses:

None of these are examples of a collision.

A giraffe chewing a leaf.
A dog scratching on the door.
A log burning.

A giraffe chewing a leaf.
A dog scratching on the door.

A giraffe chewing a leaf.

Based on the given options, none of these scenarios are examples of collisions.