As shown in the figure, PA and PB are tangents of circle O, the tangent point of point A and B, AC is the diameter of circle O, given that angle P = 50.0, then the size of angle ACB is ()
Choices:
A:65°
B:60°
C:55°
D:50°
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, PA and PB are tangents of circle O, the tangent point of point A and B, AC is the diameter of circle O, given that angle P = 50.0, then the size of angle ACB is ()
Choices:
A:65°
B:60°
C:55°
D:50°
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: As shown in the figure, PA and PB are tangents of circle O, the tangent point of point A and B, AC is the diameter of circle O, given that angle P = 50.0, then the size of angle ACB is ()
Choices:
A:65°
B:60°
C:55°
D:50°