WorldCom , which said it will buy MFS , shed 1-3/4 to close at 21 while MFS lost 3-8/16 to close at 41-5/16 .
<response> <organization>WorldCom</organization> , which said it will buy <organization>MFS</organization> , shed 1-3/4 to close at 21 while <organization>MFS</organization> lost 3-8/16 to close at 41-5/16 . </response>