Question

what happens to electrons when an object is rubbed on another object like wool?
they are created
they are transferred from one object to another
they stay in place
they are destroyed

Explanation:

When objects are rubbed together (like wool and another object), charge transfer occurs via electrons. Electrons can't be created/destroyed (violates conservation), nor do they "stay in place" in static friction - based charging. So electrons transfer between objects, causing charge separation.

Answer:

They are transferred from one object to another