Which of the following is not a risk factor associated with the development of syndrome X and type 2 diabetes mellitus? 1) Hypertriglyceridemia and low high-density lipoprotein (HDL) 2) Gestational diabetes and polycystic ovarian syndrome 3) Hispanic, African-American, 4) Native-American, and 5) Pacific Islander ethnicity 6) Postprandial hypoglycemia