If ADE ABC in this diagram, which pair of ratios must necessarily be equal?

Answer:
[tex]\frac{AD}{AB}=\frac{AE}{AC}=\frac{DE}{BC}[/tex]
Step-by-step explanation:
we know that
Triangle ADE and Triangle ABC are similar
therefore
the ratio of their corresponding sides are equal
so
[tex]\frac{AD}{AB}=\frac{AE}{AC}=\frac{DE}{BC}[/tex]