Suppose there are four radio button controls attached to a group box control on a form. How many radio buttons can be selected (that is, be “on”) at any given time?

________ is the ability of two or more people to communicate in text over the Internet in real time

A) VoIP B) SMTP C) Remote handshaking D) Instant messaging

A Word document can be saved as a PDF document which can be opened on most computers

Indicate whether the statement is true or false