High levels of LDL cholesterol and triglycerides, and low levels of HDL cholesterol are linked to heart disease. High levels of LDL cholesterol, often called the “bad” cholesterol, are associated with heart disease. LDL cholesterol can stick to artery walls causing the formation of blockages or plaques..
The answer is A which is the second option
Groundwater dissolves the rock when it flows through
I would not suggest it. Anything can happen on a boat.