Stocks retreat after grim China data, oil plummets

By David Gaffen NEW YORK (Reuters) - Global markets got February off to a cautious start on Monday following a rocky January, with stocks and oil falling in the wake of weak manufacturing reports around the world. "My main question is will the U.S. economy be able to continue to grow just through the services sector when the manufacturing sector is having such a tough time?" asked Rabobank U.S.-focused economist Philip Marey. Oil prices, the other major factor influencing markets this year, also