Polygon A B C D \sim polygon A E F G, m \angle A G F = 108, G F = 14, A D = 12, D G = 4.5, E F = 8, and A B = 26. Find m \angle A D C.
Choices:
A:14
B:72
C:108
D:120
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: Polygon A B C D \sim polygon A E F G, m \angle A G F = 108, G F = 14, A D = 12, D G = 4.5, E F = 8, and A B = 26. Find m \angle A D C.
Choices:
A:14
B:72
C:108
D:120
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: Polygon A B C D \sim polygon A E F G, m \angle A G F = 108, G F = 14, A D = 12, D G = 4.5, E F = 8, and A B = 26. Find m \angle A D C.
Choices:
A:14
B:72
C:108
D:120