[单选题]
A compound microscope has an objectivepu*24okw 2rs7vk nkcdv 3yv1f:8 g7zc with a focal len2 f d/a 4w)iwj8b6dmength of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total mad i dn8m/j)2wf6ewb 4agnification?
