<prompt> Which of the following is an ultrashort acting muscle relaxant ?RocuroniumAtracuriumSuccinyl cholineDoxacurium  <response>: Ans- C Fastest acting MR Scoline Fastest acting NDMR Rocuronium Shortest acting MR Gantacurium or scoline Shortest acting NDMR Gantacurium or mivacurium Longest acting MR Doxacurium 