I think the answer is b. hope it's right
i believe the answer is C. Still and unmoving.
Answer:
Is not always directly stated
Answer: i can think of two ways.
Call to action for impact. Or
Skipping the QandA at the presentation end.
Explanation:
A call to action let's you keep it short but also want people to do something with that information.
Like something which morivates, empowers and inspires them too.
Skipping the Qand A will reduce your time cost. And it also keeps you in control of the mood and thet atmosphere around.