As shown in the figure, the straight lines AB and CD intersect at point O, EO perpendicular  AB, and the foot of perpendicular is point O, angle BOD = 50.0, then angle COE = ()
Choices:
A:30°
B:140°
C:50°
D:60°
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, the straight lines AB and CD intersect at point O, EO perpendicular  AB, and the foot of perpendicular is point O, angle BOD = 50.0, then angle COE = ()
Choices:
A:30°
B:140°
C:50°
D:60°
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, the straight lines AB and CD intersect at point O, EO perpendicular  AB, and the foot of perpendicular is point O, angle BOD = 50.0, then angle COE = ()
Choices:
A:30°
B:140°
C:50°
D:60°