Why vptr is not static?

Question

Every class which contains one or more virtual function has a Vtable associated with it. A void pointer called vptr points to that vtable. Every object of that class contain

Answer 1

The runtime class of the object is a property of the object itself. In effect, vptr represents the runtime class, and therefore can't be static. What it points to, however, can be shared by all instances of the same runtime class.