S2 is best appreciated in -
Ans. is 'a' i.e., 3rd left intercostal space o Best areas to auscultate for both components of the second heart sound (A2 and P2) are either the left sternal border at the level of second intercostal space (Pulmonic area) or the left sternal border at the level of third intercostal space (Erb s point).
3rd left intercostal space
2nd right intercostal space
4th left intercostal space
5th left intercostal space
General