C, because if you are using music to relax, you want music that is peaceful, and that it wont cause singing. The purpose of relaxing is to be in peace and tranquility. dozing off is okay because it signifies that the body is tired and needs to be deeply relaxed.
High density Lipoprotein (HDL) is Known as good Cholesterol.
Low Density Lipoprotein(LDL) is known as Bad cholestrol.
high levels of HDL can lower The risk of heart attacks and strokes.
High levels of LDL can Increase The risk of Heart attacks and strokes.
Hope it helps...
Regards;
Leukonov/Olegion.