Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: In what states did John Marshall serve in the American Revolution? Passage:After the 1775 Battles of Lexington and Concord, Thomas and John Marshall volunteered for service in the 3rd Virginia Regiment. In 1776, Marshall became a lieutenant in the Eleventh Virginia Regiment of the Continental Army. During the American Revolutionary War, he served in several battles, including the Battle of Brandywine, and endured the winter at Valley Forge. After he was furloughed in 1780, Marshall began attending the College of William and Mary. Marshall read law under the famous Chancellor George Wythe at the College of William and Mary, and he was admitted to the state bar in 1780. After briefly rejoining the Continental Army, Marshall won election to the Virginia House of Delegates in early 1782.


a