Which of the following are the stages of Information Technology Revolution?

1.Microelectronics, Computers and Telecommunications Convergence

2.The innovations in the field of Environment

3.The creation of internet

4.Network technologies and pervasive computing

5.Technologies of Life-Bio-technology (Genetic Engineering)

A1, 2, 3 and 4 only

B2, 3, 4 and 5 only

C1, 3, 4 and 5 only

D1, 2, 4 and 5 only

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