<prompt> The advantages of hysterectomy in molar pregnancy are:Chance of choriocarcinoma becomes nilFollow up is not requiredEnlarged ovaries can be removed during operationChance of pulmonary embolisation is minimal  <response>: Hysterectomy when performed in molar pregnancy significantly decreases the chances of developing choriocarcinoma by 5 fold times but does not make it nil and hence follow up is required so both options a and b are incorrectThis is supported by following lines from Dutta-It should be remembered that following hysterectomy, persistent GTD is observed in 35 cases. As such, it does not eliminate the necessity of follow up.The enlarged ovaries theca lutein cysts found during operation should be left undisturbed as they will regress following removal of mole. But, if complication arises, like torsion, rupture or infarction, they should be removed.Dutta 7e, p 195Thus from above lines it is also clear that ovaries even if they are enlarged should not be removed during hysterectomy for h mole.As far as pulmonary embolisation in concerned -acute pulmonary insufficiency due to pulmonary embolization of trophoblastic cells, is a complication seen with suction evaculation and not hysterectomy. 