<prompt> A multiparous woman delivered by a village dai midwife presents on the 22nd postnatal day with bleeding per vaginam with clost. On examination, the uterus is 14-16 weeks, the internal os is open, and there is bleeding through the os. The likely cause of this bleeding is -Excessive postnatal physical workPerineal tearsRetained bits of placenta and membranesNone of the above  <response>: Ans-C 