The Introduction to a Lab Report Should Accomplish Which of the Following

The introduction to a lab report should accomplish which of the following tasks?

A) Describe the hypothesis or question that your study attempted to answer and why this hypothesis or question is important.
B) Provide an extensive, detailed review of previous research relevant to your study.
C) Describe in detail the methods you used to find an answer to your research question.
D) Define the important terms and present the theoretical background concepts you expect your readers will need to know.