Consider the following statements as regards BPSK and QPSK: In BPSK we deal individually with each bit of duration TbIn QPSK we lump two bits to form a symbolIn both BPSK and QPSK signal changes occur at bit rateIn QPSK the symbol can have any one of four possible values Which of the above statements are correct?

Consider the following statements as regards BPSK and QPSK: In BPSK we

1.	Consider the following statements as regards BPSK and QPSK: In BPSK we deal individually with each bit of duration TbIn QPSK we lump two bits to form a symbolIn both BPSK and QPSK signal changes occur at bit rateIn QPSK the symbol can have any one of four possible values Which of the above statements are correct?
A.	1, 2, 3, 4
B.	1, 2, 3
C.	1, 2, 4
D.	2, 3, 4
Answer» D. 2, 3, 4