Answer:
(A) Formal outline
Step-by-step explanation:
Public speaking is difficult for many people, but as training goes on, it develops into a common routine. This seems to be the case with Marsha, who can lecture for an hour without formally preparing the material.
However, beyond the disinhibition, public speaking requires holding the public's attention to your talk. This way, if you do some planning, things should flow better. One of the ways that are considered most effective is to formally outline the content of the lecture, placing topics and key points that will be discussed.