Feb 4 (Reuters) - Canada’s main stock index rose on Thursday, as energy stocks tracked gains in oil prices after U.S. inventories fell, and as optimism around fiscal stimulus in the United States boosted sentiment. * At 9:34 a.m. ET (1434 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was up 34.17 points, or 0.19%, at 17,950.08. (Reporting by Shivani Kumaresan in Bengaluru; Editing by Vinay Dwivedi)