Which of the Following Can Be Responsible for the Production

Multiple Choice

Which of the following can be responsible for the production of murmurs?
1) Stenotic AV valves
2) Incompetent AV valves
3) Incompetent semilunar valves
4) Dextrocardia

A) 1 and 4
B) 2 and 3
C) 1, 2, and 3
D) 2, 3, and 4