The correct answers are 2, 3 and 5.
An effective public speaker should have this characteristics:
-He/she should be able to speak at a steady pace, to favor thus the correct interpretation of his/her words by a heterogeneous public, in which there are different comprehension capacities, so that speaking at a calm pace will help everyone to receive the same message.
-He/she should use gestures and body language to reinforce the message that is being provided, and facilitate its understanding.
-He/she should make eye contact with the audience, since this gives the public a feeling of familiarity with the speaker, which generates more attention and interest on the subject.
But I can hear it now :if teenager are all so safe, why do they have such high accident rate
