Reuters [Stocks gain on improved sentiment, crude at $120] Wall Street stocks rose on Monday, tracking gains in Asia and Europe on signs of an easing of restrictions by China, and as investors took expected interest rate hikes in coming days in their stride despite crude oil hitting $120 a barrel. The dollar was little changed against the euro ahead of a European Central Bank policy meeting on Thursday but was weaker against the commodity currencies – the Canadian, Australian and New Zealand dollars – as risk appetite increased. A Wall Street Journal report that Chinese regulators are concluding probes…