Most New Yorkers refuse to eat at restaurants which receive a “C” grade from the city’s health department, according to a recent survey from the Zagat restaurant guide. Only one percent of the 41,000 people interviewed said they would dine at a C-rated restaurant. One-third of those surveyed reported that they only eat at places with A ratings, whereas half will eat anywhere with an A or a B grade. Currently, about 2,000 restaurants in the city have a C grade. The survey results are included in Zagat’s 2012 guidebook.