A 70 MHz carrier is QPSK modulated by a 1.544 Mbps T1 data stream. The transmitter employs a raised-cosine filter with $$\alpha = 0.2$$ What is the transmitted bandwidth of the
signal?

A

3705.6 KHz

B

1852.8 KHz

C

308.8 KHz

D

926.4 KHz