A processor chip is used for applications in which 30% of the execution time is spent on floating- point addition, 60% on floating-point multiplication, and 10% on floating-point division. For the new model of the processor, the design team has come up with three possible enhancements, each costing roughly the same in design effort and manufacturing. Which one of these enhancements will be chosen? Show all your work to get full credit. (i) Redesign the floating-point adder to make it twice as fast. (ii) Redesign the floating-point multiplier to make it three times as fast. (iii) Redesign the floating-point divider to make it ten times as fast. (iv) Redesign both the floating-point adder and multiplier to make each one two times as fast.