What is the scale factor of the dilation between angle ABC and A''B''C"

Given :
D2/5 ( ABC ) = (A'B'C')
D5/3 ( A'B'C' ) = (A''B''C'')
So, the scale factor of dilation between ABC and A''B''C'' =
[tex]\frac{2}{5}\cdot\frac{5}{3}=\frac{2}{3}[/tex]The answer is option 4) 2/3