The urgent messages are sent through post office in lesser time than postal mail is

We should send only a brief message through a

  A telecommunication medium for transmitting and receiving moving images that can be monochrome (black-and-white) or colored, with or without accompanying sound is

We get a lot of information through  

Which one of the following has made television a popular and effective media?

With the help of the latest mobile phone services we can

One of the most common and cheapest means of spreading information is

The most effective means of mass communication are