Answer:
Man versus self
Step-by-step explanation:
Although Frederick is nervous to learn that he is going to speak to a crowd, the conflict he is subjected to is not caused by the crowd, but by himself, which is an example of Man versus self conflict.
Man versus self occurs when the character has to face his own thoughts of fear, inferiority and nervousness about something. As we can see in the text shown in the question above, Frederick is doubting himself and for that reason, he is nervous. He is having a conflict with his own thoughts.