[单选题]
The objective of a telescope has a focal length of 200 cm mbxq 7a uz+u:fjb:9x* and itk:v)m/e/eivh 0cc.gch c4 hy.;q eel 4s eyepiece has a focal length of4ekehqyce4 g:mhc/.; /e0i)h.vc vc l 1.1 cm. What is the magnification of this telescope when viewing an object at infinity?
A. 20
B. 0.0050
C. 200
D. none of the given answers
