As shown in the figure, the light source P is directly above the crossbar AB, the shadow of AB under the light is CD, AB parallel  CD, AB = 2.0, CD = 5.0, the distance between point P and CD is 3.0, then the distance between AB and CD is ().
Choices:
A:\frac{6}{5}
B:\frac{7}{6}
C:\frac{9}{5}
D:\frac{15}{2}
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, the light source P is directly above the crossbar AB, the shadow of AB under the light is CD, AB parallel  CD, AB = 2.0, CD = 5.0, the distance between point P and CD is 3.0, then the distance between AB and CD is ().
Choices:
A:\frac{6}{5}
B:\frac{7}{6}
C:\frac{9}{5}
D:\frac{15}{2}
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 light source P is directly above the crossbar AB, the shadow of AB under the light is CD, AB parallel  CD, AB = 2.0, CD = 5.0, the distance between point P and CD is 3.0, then the distance between AB and CD is ().
Choices:
A:\frac{6}{5}
B:\frac{7}{6}
C:\frac{9}{5}
D:\frac{15}{2}