Apatient's urine sample indicates high levels of insulin. this condition would be attributed to the malfunction of which of these endocrine cells? a. chief cells b. alpha cells c. beta cells d. c cells

Insulin is produced by a type of cell called a Beta-Cell which is located in the pancreas. When over production or underproduction or no production is noted, then it is an indication that some sort of metabolic illness involving beta cells is present. These are usually diseases such Diabetes Mellitus both I and II, Prediabetes, Gestational Diabetes (mostly diabetes)