Question: Apple slices were divided evenly between two identical metal boxes. A lighted 20-watt incandescent light bulb was placed in box A, and a lighted 20-watt fluorescent light was placed in box B. The apple slices in box A dried faster than those in box B because

  Options: 
 A. fluorescent light is a luminous light.
 B. incandescent light produces more heat.
 C. fluorescent light has a lower frequency.
 D. incandescent light causes a chemical reaction.
Answer: B