B
(random words to reach 20 characters)
A valley is the result of erosion by glaciers and flowing water
Answer:
Secondary
Explanation:
There are several levels of prevention. You might confuse this with primary prevention. Primary prevention is preventing infection, so it has to be done before the patient caught the disease.
The needle-exchange program aims to reduce the spread of blood-borne disease(HIV, hepatitis, etc) from the multiple usages of the same needle. Since the disease already exists, this will be secondary prevention.
I THINK it's Carbohydrates and cholesterol. I couldn't find a very clear answer.