$5.$ How do beq and j differ, and can you briefly explain how each one is executed in this

circuit? Explain the significance of $(2$b$),$ the $$shift left $2.$

$($Hint: Note that there are now two of them, the lower one is familiar and is needed for beq

while the upper one is needed for j$.$ What are they doing? Why do we do this shift$-$left i$.$e$.$

multiply by $4?$ It$$s something needed in both cases $...)$