Answer:
I wish I could help but I sure I saw a question like this on khan academy. you can try there
Answer:
B. Underwriters' Laboratories, Inc.
Explanation:
The Underwriters' Laboratories, Inc. conducts all kinds of security certifications, including electrical equipment, that's why you see the circular UL Certified logo on every electrical device sold in the US, including all electronic devices.
The National Fire Prevention Association develops standards for electricity installations in the workplace, the National Electric Code (for buildings) and other similar.
The National Electrical Manufacturers Association sets norms for the generation and transportation of energy, for the power providers.
Certified Ballast Manufacturers is just an association of electric ballast makers.
The principal reason for the economic boom in the United States after the Second World War was a shortage of consumer goods combined with a reserve of purchasing power in the form of accumulated savings.
The biological basis of behavior
The answer would be letter B