Answer:
The correct answer is practice, rehearse, use a bigger font, then practice some more.
Explanation:
Discarding will be used to explain this answer. There are some elements that are important for this, like the narrative and casual way.
Since it has to be casual, reading fast will make the passage sound unnatural and the speaker wants something different. Since letter C points out rising or lowering the voice, this might affect the natural way the speaker looks for. Letter D is also incorrect because if the speaker followed that suggestion, the audience might think he is exaggerating.
Based on this, the only correct answer is A.
