Answer:
A
Step-by-step explanation:
Calculate the distance using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = C (2, - 1) and (x₂, y₂ ) = D (5, 3)
CD = [tex]\sqrt{(5-2)^2+(3-(-1))^2}[/tex]
= [tex]\sqrt{3^2+(3+1)^2}[/tex]
= [tex]\sqrt{9+4^2}[/tex]
= [tex]\sqrt{9+16}[/tex]
= [tex]\sqrt{25}[/tex]
= 5 units → A
