Please help me (If you don't know please don't answer)

Convince yourself that there are 3 similar triangles in the diagram. Choose the proportionality statement that represents the relationship among the 3 triangles.

Question options:
1. ABAC=ACCB=CBAD
2. ABAC=ADAC=CBCD
3. ABAC=ACAD=CBCD

Please help me If you dont know please dont answer Convince yourself that there are 3 similar triangles in the diagram Choose the proportionality statement that class=