As shown in the figure, in triangle ABC, angle C = 90.0, AC = BC, AD bisects angle CAB and it intersects BC at D, DE perpendicular AB at E, if AB = 6.0, then the perimeter of triangle DBE is ()
Choices:
A:6cm
B:7cm
C:8cm
D:9cm
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, in triangle ABC, angle C = 90.0, AC = BC, AD bisects angle CAB and it intersects BC at D, DE perpendicular AB at E, if AB = 6.0, then the perimeter of triangle DBE is ()
Choices:
A:6cm
B:7cm
C:8cm
D:9cm
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, in triangle ABC, angle C = 90.0, AC = BC, AD bisects angle CAB and it intersects BC at D, DE perpendicular AB at E, if AB = 6.0, then the perimeter of triangle DBE is ()
Choices:
A:6cm
B:7cm
C:8cm
D:9cm