What Is the Correct Sequence of Events in Blood Glucose

What is the correct sequence of events in blood glucose level homeostasis?
1) low blood glucose levels stimulate glucagon production
2) insulin facilitates glucose uptake by body cells
3) glucagon makes liver and muscle cells release glucose
4) elevated blood glucose levels stimulate insulin production

A) 1, 2, 3, 4
B) 1, 3, 4, 2
C) 2, 1, 3, 4
D) 3, 4, 2, 1