TORONTO — Canada’s main stock index rose Tuesday, helped by gains in base metal stocks, while U.S. markets were also higher. The S&P/TSX composite index closed up 35.40 points at 25,339.51. In New York, the Dow Jones industrial average was up 4.18 points at 42,587.50. The S&P 500 index was up 9.08 points at 5,776.65, […]