Please explain steps how they got the answer. The part B is $0$x$0$ still not $0$x$4$

Consider a jal instruction stored at address $00140CF20.$ Determine whether each of the

following addresses can be a target of this instruction, i$.$e$.,$ the starting location of the

procedure. You must justify your answer to receive credit.

a$.0x00520230$

The jal instruction provides the lower $28$ bits of the target byte address. The upper

$4$ bits comes from the PC to produce a full $32-$bit address. For this instruction the

upper four bits of its $PC$ are $0x0.$ Therefore, the target produced from the jal

instruction can indeed have the value from the PC target this instruction.

b$.0x04114400$

The jal instruction provides the lower $28$ bits of the target byte address. The upper

$4$ bits comes from the PC to produce a full $32-$bit address. For this instruction the

upper four bits of its PC are $0x0.$ Therefore, the target produced from the jal

instruction can indeed have the value from the PC target this instruction.