The format of each MIPS machine instruction defines how many separate fields the 32-bit machine instruction contains as well as the width in bits of each field. The instruction opcode determines the machine instruction format (R-type, I-type or J-type). Specify the number of fields and the width of each field within each of the four machine instructions whose opcodes are shown below:

a) 000100

b) 000000

c) 000010

d) 101011