IV. You are designing the next version of the LEGv8 ISA. Your colleague proposes decreasing the number of bits in the opcode for the CB format so that you can have more room for the CondBrAddr field. What are the advantages and disadvantages of this approach? Advantages (circle all correct answers): (i) Increases the total number of the instructions in the instruction set (ii) Less restrictions on the range of branch address (ii) Eliminates the need for conditional branches (iv) Eliminates the need for BL instructions (v) Eliminates the need for BR instructions Disadvantages (circle all correct answers): (i) Decreases the total number of the instructions in the instruction set (ii) More restrictions on the range of branch address (iii) Increases the total number of bits required to represent an instruction in the machine codes (iv) Makes conditional branches identical to unconditional branches (v) Increases the total length of the code