Answer the following question given this paragraph: 

Laboratory testing has come to the local drug store or grocery store because of developments in chemistry. You can test your blood glucose using a simple portable device that runs a chemical test on the blood sample and tells you how much glucose is present, allowing a diabetic patient to regulate how much insulin to administer (chemistry is also used to produce the insulin and the disposable syringe that administers the drug).


Q: Tests for levels of what in blood allow a diabetic patient to regulate how much insulin to administer?

 Choices:

- alcohol

- chloride

- protein

- glucose

A:
glucose
