A female patient comes to the clinic after missing one menstrual period. She lives in a house beneath electrical power lines which is located near an oil field. She drinks two caffeinated beverages a day, is a daily beer drinker, and has not stopped eating sweets. She takes a multivitamin and exercises daily. She denies drug use. Which finding in the history has the greatest implication for this patient's plan of care?

A) Electrical power lines are a potential hazard to the woman and her fetus.
B) Living near an oil field may mean the water supply is polluted.
C) Alcohol exposure should be avoided during pregnancy due to teratogenicity.
D) Eating sweets may cause gestational diabetes or miscarriage.