please answer a correct answer without copy and paste from previos question.I want a clear explination please.

1. A data source is operating at a data rate of R=600 bits/sec. The data is transmitted using 4-ASK signal with levels: -1 volts, O v, 1v, 2v, and carrier signal : C(t)=cos[1000nt). A sample of data signal is observed at the data source output and is given by 1000110110 a. plot the 4-ASK signal. Label completely. b. plot the 4-ASK if the data signal is shifted by 3 volts prior to modulation. c. what is the needed bandwidth to transmit the 4-ASK signal for parts a - b ? d. show how can you demodulate the 4-ASK for parts a-b. e. what is the needed bandwidth to transmit the signal using SSB modulation