Which of the following statements are true?
(a) Advanced Mobile Phone System (AMPS) is a second-generation cellular phone system.
(b) IS - 95 is a second generation cellular phone system based on CDMA and DSSS.
(c) The Third generation cellular phone system will provide universal personnel communication.
Code:1
(a) and (b) only
2
(b) and (c) only
3
(a), (b) and (c)
4
(a) and (c) only