Which of the following sentences is punctuated correctly?
A. Although the town appears strikingly dull, most folks say its a nice place to live.
B. Although the town appears strikingly dull most folks say it's a nice place to live.
C. Although the town appears strikingly dull, most folks say it's a nice place to live.
D. Although the town appears strikingly dull; most folks say its a nice place to live.
This option correctly uses a comma after "dull" to separate the introductory clause from the main clause. Additionally, it correctly uses an apostrophe in "it's" to indicate the contraction of "it is."
Therefore, the Correct Answer is C.