The correct answer is C. Microsoft.
AVI (Audio Video Interleave) is a multimedia container format developed by Microsoft in 1992. It is one of the most widely used video formats on the Windows platform. AVI files can contain both audio and video data, and they are typically compressed using a lossy codec such as DivX or XviD.
IBM is a multinational technology company that was founded in 1911. Apple is a multinational technology company that was founded in 1976. Macromedia is a software company that was founded in 1992 and acquired by Adobe in 2005. Adobe is a multinational computer software company that was founded in 1982.
IBM, Apple, Macromedia, and Adobe are all companies that have developed multimedia formats. However, AVI was developed by Microsoft.