Q4: In a Six Stages Pipeline machine; consider the following program fragment: Instruction Instruction Address Code 300 PROCCE_AQU 302 SUB X, X 304 MOV Y,5 306 SUB Y, X 308 BRZ 328 //Branch if o 306 LD Z, M[W] : 328 INC X 330 ENDP With Branch is resolved at the end of the El stage (fifth stage), calculate the following if; A. Branch instruction is Not Taken: Total # of instructions executed = Total # of clock cycles required = CPI = B. Branch instruction is Taken: Total # of instructions executed = Total # of clock cycles required = CPI = The branch penalty? = time cycles