The 11th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War. It was originally formed as a three-month volunteer unit at the beginning of the war, and then reorganized as a three-year unit, in which role it served until the end of the war.

Choose your answer: based on the paragraph above can we conclude that "The 11th Regiment Illinois Volunteer Infantry served the Union Army till the end of the war"?

Choose your answer from:
 1). Yes
 2). It's impossible to say
 3). No
I think the answer is
1).