[单选题]
The objective of a telescop. ,btm6.cyl8lz mna4u9fosm4e g 1w kkn7ji98lhas a focal length of 200 cm and its eyepiece has a focal lenli8 7 ngw9kkj1gth of 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
