The most common way for a virus to spread is by reading your email address book and emailing itself to your contacts

Identify an element used for quoted material.?

A. ?a B. ?q C. ?wbr D. ?content

A pure virtual function is a member function

a) Whose declaration ends with = 0. b) That is used in a derived class only. c) That is used in a base class d) Takes no arguments e) Member form that is used to force all derived classes to implement that member function or be a pure virtual function member of the derived class.