Mary wants to buy her mother a new vacuum cleaner, so she reads a couple of brief descriptions of two vacuum cleaners. Based on the information in the reviews, which statement is true?
Vacuum cleaner #1 is obviously the best because it has on board tools.
B) Both vacuum cleaners use the exact same design and have the same special features.
C) Vacuum cleaner #2 is better than vacuum cleaner #1 because it features an innovative brush design.
D) Modern vacuum cleaners use advance technology to provide superior performance, ease of use, and maintenance.