Answer:
The answer is (D) a customer injury caused by employee negligence.
Step-by-step explanation:
A casualty insurance policy is a type of insurance that covers liabilities for individuals or organizations when negligence or omissions occur. It can apply to a variety of insurance types, such as aviation insurance, automobile insurance, and electronics insurance. It is not related to life insurance, health insurance, or property insurance. This makes (D) the only viable answer.