The Nurse Is Explaining to the Student Nurses the Different

The nurse is explaining to the student nurses the different heart sounds that are assessed during the cardiac assessment.Which statement made by a student indicates understanding of the expected normal heart sounds?

A) "If I hear the S1 as lub and S2 as dub,then that is normal and means that the valves are working."
B) " If I hear a 'lub-dub-ee' it means the client has a ventricular gallop."
C) "If I hear 'dee-lub-dub' then the client may have an atrial gallop.This occurs near the very end of diastole just before S1 and creates the sound."
D) "If I hear the 'dee-lub-dub' sound in an older adult,then I should know that is considered normal for the older client."