<prompt>  A 35 year old athlete has height 184 cm., arm span 194cm., pulse rate 64min., BP 14864 mm Hg. Chest ausultation reveals long diastolic murmur over right 2nd intercostal space on routine examination.The probable diagnosis is -Aortic regurgitationAtrial septal defectEbstein anomalyCoarctation of aorta 