(Reuters) - Stocks and oil prices rebounded on Wednesday as the Trump administration attempted to shore up confidence and markets welcomed a report on strong U.S. holiday spending.MSCI's gauge of stocks across the globe gained 0.22 percent, while Brent crude futures were last at $52.42, up 3.86 percent.Benchmarks for both oil and stocks hit their lowest in more than a year on Monday, with the S&P 500 on the cusp of being in a bear market despite what is usually a calm week of trading..