Technology and Inventions Impacted on Sport by Which of the Following

Multiple Choice

Technology and inventions impacted on sport by which of the following?

A) Mass transit enabled large numbers of "fans" to ride electric streetcars to professional baseball games.
B) Developed artificial ice for skating rinks.
C) Developing golf balls which traveled farther and necessitated the lengthening of golf courses.
D) Using cameras to record athletes and sporting events.
E) All of the above.