Take context from the input text and decide on the accurate relationship between 'Bing' and 'Microsoft' from the options provided.
Options: stock exchange, owned by, product/material produced, platform

News releases also appear on global portals and search engines such as AOL, Bing news from Microsoft (NASDAQ: MSFT), Google (NASDAQ: GOOG), Yahoo search (NASDAQ: YHOO) just to name a few.
owned by