Processors A & B execute the same program, and on both systems, it takes the same number of instructions. Processor A executes the program $2$x faster than Processor B$.$ If Processor A$$s clock frequency is $2$x slower than Processor B$,$ what is the ratio between Processor B$$s IPC compared to Processor A$?($Hint: IPC $=1/$CPI$)(4$pts$)$