a. (5 poins) There are ten 8 -bit registers, connected by a bus. How many muhiplexors are required? How many seloct inputs does each multiplexer have? b. (6 points) Write the minimum and maximum signed numbers that can be stored in an 8-bit register using 2 's complement representations. 6. (5 points) A processar has 130 distinct instructions and 100 general purpose fegisters. A 32 bit instruction format has an opcode, two register operands and one immediate operand. How many bits are available for the immodiate aperand field