[单选题]
The objective of a telescope has a foc-v +t7(lhr3mww1czc drvc j650-ifyf al length of 200 cm and xng32evq2g9b its eyepiece has a fo3 g b9qg2x2nvecal length 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
