The correct answer is D. a question posed to the reader.
The thesis statement tells the reader what to expect from the paper and makes a claim that other people may be against. It represents your argument and persuades the reader and gives them a chance to interpret it in their own way. Therefore, it is a map for the writer, to remember and focus on the topic without leading to other related topics, is a roadmap for the reader so he/she will know what the text is about and is also what the paper revolves around. Hence, the correct answer is letter D.
