U.S. sales of previously occupied homes rose in January to the second-highest level in three years, a sign the housing market is maintaining its recovery and helping to bolster the economy. The National Association of Realtors said Thursday that sales rose 0.4% in January compared with December to a seasonally adjusted annual rate of 4.92 million. That was the second-highest sales pace since November 2009, when a temporary homebuyer tax credit