NEED HELP WILL MARK BRAINLIEST IF CORRECT!!

Answer:
A OR C
Step-by-step explanation:
1 Use Rule of One: {x}^{1}=xx
1
=x.
m=\frac{{y}^{2}-y}{{x}^{2}-{x}^{1}}m=
x
2
−x
1
y
2
−y
2 Factor out the common term yy.
m=\frac{y(y-1)}{{x}^{2}-{x}^{1}}m=
x
2
−x
1
y(y−1)
3 Use Rule of One: {x}^{1}=xx
1
=x.
m=\frac{y(y-1)}{{x}^{2}-x}m=
x
2
−x
y(y−1)
4 Factor out the common term xx.
m=\frac{y(y-1)}{x(x-1)}m=
x(x−1)
y(y−1)