Which Statement Best Represents the Purpose of the Introduction Section

Which statement best represents the purpose of the Introduction section of a written report?

A) Description of the problem, purpose of the study, scope of the study.
B) Narrowly focuses the topic, shows the gap in knowledge for the topic.
C) Provides rationale for sampling, study design, pilot testing, and data collection.
D) Outlines the statistical methods or qualitative methods used, gives tables, graphs and figures.