A 26 year old woman had amenorrhea for 10 weeks and is pregnant. She experiences hyperemesis. Now she presents with vaginal bleed. Exam: uterus=16wks, closed os. What is the most probable diagnosis?

The key is E. Molar pregnancy. [In hytaditidiform mole uterus becomes more in size than actual gestational age and due to production of large amount of gonadotrophin by moles patient suffers from severe vomiting i.e. hyperemesis. There also occurs vaginal bleeding].