A patient with type I diabetes mellitus takes an insulin injection before eating dinner but then gets distracted and does not eat. Approximately 3 hours later, the patient becomes shaky, sweaty, and...

A patient with type I diabetes mellitus takes an insulin injection before eating dinner but then gets distracted and does not eat. Approximately 3 hours later, the patient becomes shaky, sweaty, and confused. These symptoms have occurred because of which of the following?

(A) Increased glucagon release from the pancreas

(B) Decreased glucagon release from the pancreas

(C) High blood glucose levels

(D) Low blood glucose levels

(E) Elevated ketone body levels