The event in the story that is a key detail in Holmes’s solution of the case is "<span>a. the observation that Mr. Wilson belonged to the Freemasons" since this was the society that had raised suspicions before. </span>
I believe the answer to your question is C.
It's widely believed that this is something of an urban myth. According to this myth, prison governors supposedly use third-grade reading scores in local schools to plan how many beds they will need to provide in their facilities. The idea is that those who fall into a life of crime never progress in their reading abilities beyond third grade.
Explanation:
Beowulf is humble and honorable; Wiglaf is full of arrogance and swagger
The maintenance of a high moral in any army is a critical factor for its performance. At the moment that Washington selected Valley Forge as the location for his army's winter camp; his army was not equally trained and not well equipped as the British were. So selecting that location made easier for Washington's army to keep a good supply source, a shelter for extreme winter conditions and also a close location from British lines in order to make and prevent incursions.