[单选题]
A compound microscope has an objective with a focal leiya;y :zr*r ic+ cfy5;ngtc;kv+y0 byzpdpp- ii* )umc93h of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, w kpmcd -yp b*)ucz0;iy3 +vp9ihat is the total magnification?