Powell's mistake was going into Mary Surratt's boarding house.

Powell's mistake was going into Mary Surratt's boarding house.

• A. He believed he could slip away unnoticed.
• B. He went into Mary Surratt's boarding house.
• C. He had a safe hideout elsewhere.
• D. He anticipated immediate arrest.

Answer: (B)

The important idea here is that where someone hides or seeks shelter can directly shape whether they’re found. Entering Mary Surratt’s boardinghouse was a risky move because that location was a known meeting place for Booth and his conspirators, so it was already tied to the plot. By going into that boardinghouse, Powell placed himself in a place where others connected to the conspiracy could recognize him and authorities could easily identify him as part of the network. That direct link to the conspirators made it much easier for those pursuing them to locate and capture him. The other ideas describe beliefs or alternatives, but they don’t point to the specific misstep of choosing a shelter that was itself part of the conspiracy’s circle.

The important idea here is that where someone hides or seeks shelter can directly shape whether they’re found. Entering Mary Surratt’s boardinghouse was a risky move because that location was a known meeting place for Booth and his conspirators, so it was already tied to the plot. By going into that boardinghouse, Powell placed himself in a place where others connected to the conspiracy could recognize him and authorities could easily identify him as part of the network. That direct link to the conspirators made it much easier for those pursuing them to locate and capture him. The other ideas describe beliefs or alternatives, but they don’t point to the specific misstep of choosing a shelter that was itself part of the conspiracy’s circle.