Differences between social classes in the United States are based on a. Income, lifestyles, and beliefs. C. Age. B. Cultural background. D. Race. Please select the best answer from the choices provided A B C D.

Which of the following would be considered a nec code violation in regards to the installation of luminaires? a. an outdoor lighting fixture mounted to a tree b. a five-pound, 12-inch diameter light fixture supported by the screw shell of the lampholder c. florescent lay-in fixtures attached to the framing sections of a suspended ceiling with sheet-metal screws d. track lighting over a sink, 2 feet from a bathtub