An analog signal having frequency as 8,00 KHz is digitized with 7 bits and stored in a file. If the file size is 2,24 Mbit, which answer is correct? O a. Date Rate = 61,4 Kbps Duration of the Signal = 53 minute O b. Date Rate = 48,1 Kbps Duration of the Signal = 47 minute O c. Date Rate = 24 Kbps Duration of the Signal = 93 minute O d. Date Rate = 74,7 Kbps Duration of the Signal = 35 minute O e. Date Rate = 112 Kbps Duration of the Signal = 20 minute