Correct option is B
The Correct Answer is: (B) Radio
Explanation:
Radio is a form of mass communication that can reach a large audience over a wide geographic area.
It is an effective teaching aid for broadcasting information to the masses, especially in areas where other forms of communication may be limited. It is commonly used in educational programs, news, and awareness campaigns.
Information Booster:
Flash card: Used for individual learning or small groups, especially in interactive teaching, to reinforce vocabulary or concepts.
Chart: Typically used for displaying visual information or data, It is used in smaller, focused teaching settings.
Flip card: A teaching aid used in classrooms or small groups for interactive learning, often displaying questions on one side and answers on the other.