Bed Bath & Beyond Inc. (NasdaqGS:BBBY) said it was exploring options including a bankruptcy filing to address the U.S. home goods retailer's plunging sales, dwindling cash and debt load, sending its shares tumbling. The retailer in a regulatory filing said there was substantial doubt about its ability to continue as a going concern, adding that it was continuing to explore strategic alternatives including restructuring or refinancing debt or seeking bankruptcy protection.