Pls Answer The below Question and Explain in Simple Words

Answer:
D.{5,20}
Step-by-step explanation:
For the x, it is going in order (1.2.3.4.5....)
for the y you will have to square (or multiply the number by itself) the x number
1x1=1 or 1^2=1
2x2=4 or 2^2=4
3x3=9 or 3^2