<prompt> Which of the following statements isare false about ostium secundum ASD a Fixed splitting of 2nd heart soundb Narrow splitting of 2nd heart soundc Lt axis deviation in ECGd Shunt murmur prominente Rt axis deviationbcdacdacbd  <response>: In ASD S2 is fixed and wide split not narrow splitOstium secundum type of ASD is associated with Right axis deviation.Because the pressure difference between two atria is small, blood passes at a narrow pressure difference No shunt murmur. 