Answer:
Motivational speaker
Explanation:
According to my research on different public speaking jobs, I can say that based on the information provided within the question the category of most lucrative depends on popularity. If you have enough of a public following the most lucrative public speaking job is to become a Motivational speaker because it does not have a limit of the amount of money that can be earned. If you do not have a wide enough public following then the most lucrative public speaking careers are Professor or News Anchor, both of which can earn up to $140,000 a year.
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