Consider the block diagram given below for a serial transfer operation. Each shift register has 8 bits. The initial value of each register is A=10010111, B = 01001010. (25 points) SIA SOSIB SOB Shift register A Shift register B CLK CLK Clock Shift control Figure 3. Block diagram a. Explain the block diagram in your own words. What happens if the shift control signal is always 0? What happens if the shift control signal is always 1? Explain your answer. (10 points) b. Consider as if the shift control signal is always 1. Fill in the table below with the values of each register for 5 clock pulses. (10 points) Clock Pulses Register A Register B Initial Values 1 2 3 4 5 C. Consider as if the shift control signal is always 1. Is the information in register A lost after 16 clock cycles? Explain your answer. (5 points)