QUESTION 1 (20 marks) a) RISC-V is a modular instruction set. A small base of instructions runs the fully open-source software stack, followed by optional standard extensions designers can include or omit depending on their needs. i. Explain the advantages and disadvantages of using RISC-V architecture compared to the proprietary x86 architecture. (2 marks) ii. Explain any operating system that currently supports RISC-V processors, (2 marks) b) Contrast the advantage and disadvantages of big.LITTLE CPU architecture. (4 marks)