Concept:Insurance covers only accidental, unforeseen losses, not ordinary business risks caused by market changes.
Explanation:An entrepreneur faces many types of risks while running a business.
Some risks, such as theft, fire, or loss of goods in transit, happen suddenly and accidentally.
These risks can be insured because they are unpredictable and measurable.
However, a change in consumers' taste is a normal market risk.
It depends on customer preferences, fashion, and market trends.
This is not a sudden or accidental event that an insurance company can assess or guarantee against.
Therefore, it is excluded from insurance cover.
So among the given options, the risk that an insurance firm would not cover is the change in consumers' taste.
Answer:B. Change in consumers' taste