While Auscultating for Heart Sounds in a 7-Year-Old During a "Routine

While auscultating for heart sounds in a 7-year-old during a "routine physical," the nurse hears the following: an S₃,a soft murmur at left midsternal border,and a venous hum when the child is standing.Which of the following about the findings is true?

A) S₃ is indicative of heart disease in children.
B) These can all be normal findings in a child.
C) These are indicative of congenital problems.
D) The venous hum most likely indicates an aneurysm.