Final answer:
In an introduction, it is important to begin with a specific purpose statement that previews the main idea and key points. The correct answer is option b) and c)
Step-by-step explanation:
In an introduction, it is important to begin with a specific purpose statement. This statement previews the main idea and briefly touches on key points that will be discussed. It helps outline and guide your presentation, allowing the audience to understand where your essay or speech is headed. Additionally, the introduction is an opportunity to establish credibility and engage the audience with an anecdote, quotation, question, or surprising facts.