If you need to improve the performance of a research machine and you are aware that the distribution of the processing time is: ALU$\_20\%,$ Graphics: $30\%,$ Memory Access: $40\%,$ Hard Drive Access: $10\%.$ The following options for improvement are available: A$.$ Upgrade the ALU which will triple the ALU speed. B$.$ Replace the graphics card with an improvement of $\%40.$ C$.$ Upgrade the memory from $2\mathrm{.}6$ Ghz to $3\mathrm{.}0$ Ghz D$.$ Upgrade from old magnetic drives to solid state drives which improves drive performance $4$ times. What is the expected speedup if all upgrades are implemented $(4$ pts$)$