Answer:
the missing options are:
a. expert testimony
b. brief example
c. metaphor
d. hypothetical example
e. simile
The answer is b. brief example.
Explanation:
By talking about how she failed when she tried to ride a bike many years ago, Alisha is setting a brief example that helps to understand the idea of her speech, and also catches the attention of the audience because is something that a lot of people can relate to or associate with similar experiences.