Visual aid for transfer of technology includes:

Correct option is B

The Correct Answer is: (B)​E-mail

Explanation:
E-mail is the most suitable visual aid for technology transfer among the options listed.
· It allows for the easy sharing of documents, images, diagrams, and other visual materials that can effectively convey technical information.
· E-mail also enables asynchronous communication, allowing recipients to review and process information at their own pace.
Other Options Explanations:
(a) Audio teleconference: While teleconferencing facilitates communication, it primarily relies on audio and lacks the visual component crucial for effective technology transfer.
(c) Cultural programme: Cultural programs are valuable for cultural exchange and understanding.