Step-by-step explanation:
The ratio of the two shorter legs of the top triangle is

The bottom triangle has the following ratio:

Since their ratios are the same, this means that the two triangles are similar.
A and d seem correct to me.
b and c are definitely wrong.
100 is the correct answer to your question
I recommended reporting the skitlett person typing rn they r using quetions for points and putting links to open