Q$4$ What is the difference between the following two approaches? Which approach provides benefit over the other? Why?

Approach I:

Beq $$18,$$$19,L1$

$.........$

L$\mathrm{.}1$:

Approach $2$:

Bne $$18,$ $$19,$ L$2$

JL$1$

L$\mathrm{.}2$ :