A healthy 24 y/o man participates in a clinical study. serum-levels of proinsulin derived C-peptide are measured after various provocative stimuli. Administration of which of the following will most likely produce the lowest levels of circulating C-peptide?
A. CCK
B. Clonidine
C. Glucagon
D. Terbutalline
E. Theophylline
Try to explain your answer (but still take a guess even if you don't want to explain
A. CCK
B. Clonidine
C. Glucagon
D. Terbutalline
E. Theophylline
Try to explain your answer (but still take a guess even if you don't want to explain