Questions: Which of the following is the best summary of the excerpt from "The Adventure of Silver Blaze"? A man wants to bribe Edith to put the substance in a white envelope into the stable boy's food. A man approaches Edith to find out where the stable boy is sleeping. A man approaches Edith because he wants to help her shop for a new dress.

The answer is A: A man wants to bribe Edith to put the substance in a white envelope into the stable boy's food.

Explanation for each option:

• Option A: This option is correct because it captures the essence of a plot involving deceit and manipulation, which is a common theme in detective stories like "The Adventure of Silver Blaze." The mention of a bribe and a substance suggests a plan to incapacitate or harm, aligning with the intrigue typical of such narratives.

• Option B: This option is incorrect because it focuses on finding out where the stable boy is sleeping, which does not convey a significant plot development or conflict. It lacks the element of intrigue or wrongdoing that is central to the story.

• Option C: This option is incorrect because it introduces a scenario about shopping for a new dress, which is unrelated to the themes of mystery and crime in "The Adventure of Silver Blaze." It does not reflect the tension or stakes present in the story.