Answer:
The missing options are:
a. an attention getter
b. a thesis statement
c. a specific purpose
d. a general purpose
The correct answer is b. a thesis statement
Step-by-step explanation:
This is an example of a thesis statement because the speaker is introducing the topic of his/her thesis, in other words, the person is going to talk about the investigation that has been made about the history, the equipment, and the health benefits of racquetball to inform others. By giving this statement, the speaker is guiding the audience in the different steps of the thesis.