A, but that could be a trick one, go for D, that one is definitely correct. Wait a minute... what is plaques???
A high cholesterol level, per se, does not cause any symptoms or signs of any disease. The problem arises when, given time, the persistently high level of cholesterol starts to deposit in irreversible plaques in crucial arteries e.g. coronary arterie...
That would depend on how you define cheap. You aren't going to generally find plaques that cheap. the dice plaques on ebay are usually some of the cheapest ones you can find. But there are places like this also if you want to spend the money.