Questions: One example of a corporation with an effective fire safety policy that helped prevent significant loss in a 1991 fire is: Tyson Foods. Imperial Foods. Factory Mutual. Verso Paper Mill.

The answer is B: Imperial Foods.

Explanation for each option:

A. Tyson Foods: Tyson Foods is a well-known corporation in the food industry, but it is not specifically noted for having an effective fire safety policy that helped prevent significant loss in a 1991 fire.

B. Imperial Foods: Imperial Foods is actually known for a tragic fire incident in 1991, but it is not an example of a corporation with an effective fire safety policy. The fire at the Imperial Foods processing plant in Hamlet, North Carolina, resulted in significant loss of life and highlighted severe deficiencies in fire safety measures, including locked exit doors and inadequate fire alarms.

C. Factory Mutual: Factory Mutual (now known as FM Global) is an insurance company specializing in loss prevention services, including fire safety. However, there is no specific 1991 fire incident associated with Factory Mutual that is widely recognized for demonstrating an effective fire safety policy.

D. Verso Paper Mill: Verso Paper Mill is a paper manufacturing company, but there is no notable 1991 fire incident associated with it that highlights an effective fire safety policy.

Given the options, none of the corporations listed are known for having an effective fire safety policy that helped prevent significant loss in a 1991 fire. The Imperial Foods fire is actually an example of poor fire safety practices leading to a tragic outcome.