BOSTON-- Tyler Hansbrough scored 17 and Ty Lawson had 13 points with seven assists and six rebounds to lead fourth-ranked North Carolina to a 77-72 victory over No. 21 Boston College. Boston College had several chances to tie it in the final minutes. But Jared Dudley missed all three free throws after he was fouled trying a 3-pointer with 1:29 left. He also missed a 3 when it was 75-72 with 10 seconds left, and Lawson hit a pair of free throws with seven seconds remaining to ice it. North Carolina (23-4, 9-3 Atlantic Coast Conference) bounced back from Tuesday night's 81-80 overtime loss to Virginia Tech and took over first place in the conference from BC (18-8, 9-4). Dudley scored 22 and Tyrese Rice had 20 for the Eagles, who lost to Duke on Wednesday night. Copyright 2007 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.