Consider the following lines of MIPS code:

I$1$: add $t$3,$ $t$1,$ $t$2$

I$2$: or $t$5,$ $t$3,$ $t$4$

I$3$: add $t$2,$ $t$6,$ $t$3$

I$4$: lw $t$6,24($$t$3)$

I$5$: sw $t$6,12($$t$2)$

I$6$: lw $t$0,48($$t$6)$

a$)$ Find all the data dependencies and their types $($give instructions and the registers involved$).$

b$)$ List the hazards.

c$)$ Add NOP instructions to eliminate the hazards identified in $($b$).$

d$)$ Assuming a clock period of $175$ ps$,$ what is the total time to execute the instruction sequence

resulting from $($c$)?$