In the figure below, \angle A B C is intersected by parallel lines l and m at points A and C, respectively. What is the measure of \angle A B C? Express your answer in degrees.
Choices:
A:33
B:38
C:61
D:71
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: In the figure below, \angle A B C is intersected by parallel lines l and m at points A and C, respectively. What is the measure of \angle A B C? Express your answer in degrees.
Choices:
A:33
B:38
C:61
D:71
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: In the figure below, \angle A B C is intersected by parallel lines l and m at points A and C, respectively. What is the measure of \angle A B C? Express your answer in degrees.
Choices:
A:33
B:38
C:61
D:71