What is meant by the phrase "constraints are not absolute?"

What will be an ideal response?

- While a speaker needs to satisfy the expectations associated with the occasion, there is still ample room for creative and strategic choices.
- A speech should meet the expectations of the audience but also go beyond what they expect to hear.
- This might be done by introducing a new concept that the audience is unaware of which might transform their current way of thinking.
- The speaker both responds to and actively shapes the rhetorical situation and should make strategic choices along the way.