Each general statement below is followed by several examples. Select the letter of the example that does not clearly illustrate the generalization. Many conveniences of modern life that we take for granted are less than seventy years old.

A) It was not until 1969 that the Sony Corporation brought out a video recorder with tape in a cassette, causing a revolution in home viewing.
B) Aluminum foil, introduced by Richard S. Reynolds in 1947, can now be found in almost every home in America.
C) Hair coloring was first used by the ancient Egyptians.