Answer:
B) Retaining
Explanation:
The risk retaining refers to the risk in which the company takes the decision that represents the responsibility for some specific risk i.e. opposed to the risk transfer over and above to the insurance company
Here the risk retain is adopted when the doing cost is less than the fully or partially cost
In the given situation, since it is mentioned that the risk is attached with the unlikelihood and struck from lighting so this is to be handled by retaining
hence, the correct option is B. Retaining