Burger King owner Restaurant Brands International QSR.TO dropped 3.6% as the company missed fourth-quarter profit estimates. By Shristi Achar A Feb 14 (Reuters) - Canada's main stock index edged lower in choppy trading on Tuesday, as Restaurant Brands International's quarterly profit miss dragged down the consumer discretionary sector, while gains in energy and technology firms helped limit losses. Meanwhile, data showed U.S consumer prices accelerated in January, but the year-on-year increase was the smallest since late 2021, pointing to a continued but slow fall in inflation.