A denial-of-service attack (DOS attack) is characterized by an attempt to prevent legitimate users of a service from using that service.

Suppose we want to declare a pointer called ptr which can hold the address of a float. Its declaration would look like this:

A. float ptr ; B. float ptr; C. &float ptr; D. float ptr;

How is a button, component or movie clip given an instance name in the Flash CS5 interface?

What will be an ideal response?