Raymond ozzie, the software designer who was critical in the development of lotus notes, was able to dictate the terms under which ibm acquired lotus. this illustrates that he had bargaining power based on the cost required by the firm to replace him.
Option D high; high
The reason is that the Raymond knows about where Lotus Notes begins and where it ends, so the influence of Raymond is higher which means he has higher bargaining power because the person required as an alternative who will come and review the software from start will cost IBM much more, so the company has limited its bargaining power due to over relaince on Raymond Ozzie. This means this limited bargaining power is due to high cost of shift from Raymond to anyother software designer.