Based on the subheading "Life in the White House," it is most likely that the text will include the duties of the first lady (B). The subheading suggests that the text will focus on what life is like for someone living in the White House, and the duties of the first lady are undoubtedly a significant aspect of that.
Based on the subheading "Life in the White House," we can make an educated prediction about what the text might include. In this case, the most likely answer would be B: Duties of the First Lady. The subheading suggests that the text will focus on aspects of life within the White House, and the duties of the First Lady are a significant part of that. However, without further information, we cannot be completely certain of the correct answer.
