Assume the following register contents:

$t$0=0$xAAAAAAAA, $t$1=0$x$12345678$

$($a$)$

For the register values shown above, what is the value of $t$2$ for the following sequence of instructions?

sll $t$2,$ $t$0,4$

or $t$2,$ $t$2,$ $t$1$

$($b$)$

For the register values shown above, what is the value of $t$2$ for the following sequence of instructions?

sll $t$2,$ $t$0,4$

andi $t$2,$ $t$2,1$

$($c$)$

For the register values shown above, what is the value of $t$2$ for the following sequence of instructions?

srl $t$2,$ $t$0,3$

andi $t$2,$ $t$2,0$xFFEF