3. It is best to use an oral channel in the following situations except when
you want immediate feedback from
the audience.
you want to encourage interaction
to solve a problem or reach a
decision
your message is complex and
requires further explanation.
O you need no permanent record.​

Incomplete question. The full question read;

It is best to use an oral channel in the following situations except when ___

Explanation:

Remember, using oral feedback helps your listeners to easily understand the complexities in your message when it is simplified by the speaker, receiving immediate feedback from the audience, and encourages interaction among the audience.

However, using an oral channel does not guarantee an honest no permanent record would occur, thus, it is an exception among the listed situations.

answer: d. characteristics of guests

explanation: it is directly related to the spending characteristics of attendees who fall into each of these categories:

i do believe its modular luck

explanation: