Which triangles must be congruent?
A. AABC, AFDE, and AGIH
B. AABC and AFDE only
C. AGIH and AABC only
D. none of the triangles
![Which triangles must be congruentA AABC AFDE and AGIHB AABC and AFDE onlyC AGIH and AABC onlyD none of the triangles class=](https://us-static.z-dn.net/files/d70/ca07189305a230ce2dc3fcbb0a04f4e0.jpg)