Which one of the following is an example of a nondiversifiablerisk? 

a. a well-respected chairman of the Federal Reserve Banksuddenly resigns 

b. a well-respected president of a firm suddenlyresigns 

c. a poorly managed firm suddenly goes out of business dueto lack of sales 

d. a key employee suddenly resigns and acceptsemployment with a key competitor 

e. a well-managed firm reduces itswork force and automates several jobs