<prompt> Delayed labour occurs in:a Early use of epidural anesthesia with analgesiab Early use of analgesiac Unripened cervixd Preeclampsiae Use of sedative early in course of labourbcdeabceacdeabde  <response>: Delayedprolonged labour:Labour is said to be prolonged when the combined duration of the first and second stage is more than the arbitrary time limit of 18 hours or when the cervical dilatation rate is less than 1 cmhr and descent of the presenting part is 1 cmhr for a period of 4 hours WHO-1994.Causes of Prolonged labour: 