According to the caller, BC represents breast cancer research. I was being asked for a $25 donation to assist in the development of a breast cancer serum that will be available in 2018 to prevent breast cancer. When I asked if the organization were a part of the American Cancer Society, there was a long pause and then the caller stated that since my call was on mute, she could not hear my question. I was directed to call the number 901-443-3393 to ask my questions. Then she ended the call. Of course, this is a scam of the worst order.