Answer:
The insurance company, because the applicant was covered by the policy.
Step-by-step explanation:
Once a conditional receipt is given, the applicant is immediately covered. The issuing of a conditional receipt provides immediate coverage starting from the date the application was made and the premium was paid. Only if the applicant didn't pass the underwriting requirements for the policy, would the policy not be in effect. For example, if the applicant must pass a medical examination, the coverage begins only after the applicant passes the medical examination.
Therefore the insurance company must provide the reasons why they denied the claim.