I haven't read the thread. Q's re D and O insurance. Side A and...

I haven't read the thread. Q's re D and O insurance.
Side A and Side C are separate coverages and side C cover is not always offered by insurers. Side C increases risk substantially as the insurer indemnifies the organisation if they are contractually obliged to defend the directors. You could even have directors sue other directors on the bod for their neglhence/non disclosure.
Usually the limit on most policies is shared by side A and side C. In other words if the limit is 100m the coverage cannot exceed 100m for both side A and C.