Question

the transistor made radio receivers. for keyboard navigation, press up/down arrow keys to select. selected answer will be automatically saved. a portable. b expensive. c larger. d stereophonic. e all of the above. question 29

Explanation:

Transistors made radio - receivers smaller and more power - efficient, enabling portability. They did not make them more expensive, larger, or inherently stereophonic.

Answer:

A. portable