Which of the Following Is NOT True of Insulin Delivery

Which of the following is NOT true of insulin delivery systems?

A) Insulin comes in a pen with a cartridge of insulin containing 300 units for quick and easy administration.
B) Insulin comes in a jet injector system that "sprays" the insulin through the skin.
C) Insulin may be injected with a portable insulin pump that delivers a continuous, regulated dose of insulin under the skin through a tiny needle or cannula in the abdomen.
D) Intranasal sprays, patches, and inhaled powders are in the experimental stage to supply insulin at rapid onset with less chance of skin irritation.
E) Implantable insulin pumps are readily available and are relatively inexpensive compared to other types of insulin delivery.