Who among the following was NOT involved in the invention of the transistor?

The correct choice indicates that Thomas Edison was not involved in the invention of the transistor, which is accurate. The transistor, a fundamental component of modern electronics, was invented in 1947 by William Shockley, John Bardeen, and Walter Brattain while they were at Bell Labs. This trio is often credited for developing the first working transistor, which was crucial for the evolution of electronic circuits and technology.

Thomas Edison, on the other hand, was an influential inventor and businessman known primarily for his work on the electric light bulb, phonograph, and many other inventions in the late 19th to early 20th centuries. His contributions were pivotal in the development of electrical systems and other technologies but did not include the invention of the transistor. Thus, pinpointing that Edison was not part of the transistor's creation is essential for understanding the historical context of electronic devices and the key figures involved in their development.