What type of drug test measures the amount of a drug in the specimen? quantitative or qualitative

The correct answer is: [A]: "quantitative".

{since this refers to a "quantity" ; that is, an amount that can measured.}.

{as opposed to something that is "qualitative" ; such as the "mere presence or absence of a drug, color, repeated change in a color; to cite some examples.}.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.