Answer: A. representation
Step-by-step explanation:
Representation in terms of insurance can be referred to as the facts which are related to the acts of disclosing the important information to the insurance provider. The information is in the form of declaration which can be in the written or oral form. This information is necessary for crafting the policy by the insurance provider.
According to the given situation, the applicant was not aware of the disease thus made a representation of good health in insurance application. But if the applicant dishonestly tried to hide the fact then this will be the condition of concealment of facts.