Decode the R type machine instruction with HEX format, $[$the OP field has a value of $0$ for all the

R formation instruction, funct filed: the value $32$ indicates addition operation, $34$ indicates

subtraction operation$],$ hint: convert the hex representation to binary representation, divide

the binary representation to different fields according to the R type instruction format.

Which one is correct one to describe the machine instruction above?

a$.$ add $t$2,$ $t$1,$ $t$0$

b$.$ add $t$1,$ $t$0,$ $t$2$

c$.$ sub $t$2,$ $t$1,$ $t$0$

d$.$ sub $t$1,$ $t$0,$ $t$2$