Which of the Following Is Not Involved in Triggering Insulin $\beta$

Multiple Choice

Which of the following is not involved in triggering insulin from $\beta$ -cells release in response to glucose?

A) Reduced efflux through ATP-gated K⁺-channels
B) Increased concentrations of ATP
C) cAMP-dependent phosphorylation of lipase
D) Phosphorylation of glucose to glucose-6-phosphate
E) Increased Ca²⁺ levels