We can actually deduce here that Amelia most likely applied the following technique to achieve this: E. She varied how fast or slow she talked.
<h3>What is public speaking?</h3>
Public speaking actually refers to the way of speaking to a large number of people in order to pass across knowledge or information to them.
The options that actually complete the question are:
A. She made big dramatic arm movements.
B. She used complex vocabulary.
C. She tried not to look directly at anyone.
D. She spoke the words quickly and loudly.
E. She varied how fast or slow she talked.
Thus, we see that Amelia grabbed the attention of the students because of the way she varied how fast or slow she talked.
Learn more about public speaking on brainly.com/question/13508843
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