[单选题]
The objective of a telescope has a focal length okw0ts1 yoh (-yf 200 cm and its eylouuir3ipd8x:3 )47 jv k vy0pepiece has a jp: u y8 4kudi7xv3v03l)poirfocal 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
