1.

Which of the following is the correct order of development of devices of communication since Man learn to communicate with each other?

A.  Letter\[\to \] Newspaper\[\to \]Radio\[\to \] Television  
B.  Letter\[\to \]e-mail\[\to \]Radio\[\to \]Television
C.  Telephone\[\to \]ISD\[\to \]STD\[\to \]Local
D.  Telegram \[\to \] Speed post \[\to \] Postcard \[\to \] e-mail
Answer» B.  Letter\[\to \]e-mail\[\to \]Radio\[\to \]Television


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