Answer:
The methods of delivery that are most suitable for informal group presentations are extemporaneous and impromptu
Explanation:
The question is not complete since it does not provide the options to respond to it, here are the options:
* extemporaneous
* manuscript
* impromptu
* memorized
From the four types of speech delivery the most suitable for this situation are extemporaneous and impromptu for the following reasons:
*Impromptu speeches do not require previous preparation or research since they happen at the moment without previous notice, such as toasts in reunions.
*Extemporaneous requires more formality than the impromptu speech but even though it keeps a level of informality in the fact that this speech is based on little notes that the speaker can bring with them, it does not have a full written version of the speech.
