Assume ALU is 10 bits unit and we are using the first version multiplication hardware: if you multiply - 7 (multiplicand) by 7 (multiplier). What is the Lo register final value in binary: Select one: O a. 00000 O b. 10001 O c.0001 O d. 1010 O e. 0000 O f. 01010 Suppose we enhance a computer to make all floating point instructions run two times faster. If the execution time of some benchmark before enhancement is 120sec, what will the speedup be if 80sec before improvement is spent executing floating point instructions? (the answer is a numerical value only)