[单选题]
A compound microscop*-c nvewipzs:x/t38 ee has an objective with a focal lez-m w nps;/ o,du-va 9ve9zos)ngth of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lens9az weov /v - ;psm-zu,sod)9nes are separated by 40.0 cm, what is the total magnification?