The moon is observed using a telescope that has an objective lens with a focal length of 3.0 m and an eyepiece with a focal length of 7.5 cm. What is the angular diameter of the moon if the earth-moon distance is 3.85 x108 m and the diameter of the moon is 3.48 x106 m? (a) 0.36 rad (c) 9.0 rad (e) 40 rad (b) 4.7 rad (d) 22 rad