The following MIPS assembly program is executed in a $5-$stage pipeline processor as shown in the figure below and answers the following questions:

Assume all the hazards are resolved.

$($a$)$ During the fifth time cycle, which instruction is in the execution stage?

$($b$)$ From the answer in part $($a$),$ determine the $2$ inputs to the ALU? $[$Answer must be equivalent to the bus width and please represent the final answer in hexadecimal format, no point will be given if the answer is in other number systems$]$

$($c$)$ What are the ALU output values? $[$Answer must be equivalent to the bus width and the final answer must be in hexadecimal format, all other number system formats will result in a zero point.$]$