Question

Topic and purpose and attention-getting material are all components of the _______________________.

Answer 1

Topic and purpose and attention-getting material are all components of the : D. introduction

in the introduction, the writer most commonly use it to attract the attention of potential readers that have their interest align with the study
So, a writer usually write what study that he want to conduct , how they're doing it, and why they're doing it within the introduction part.