Which insurance line includes liability coverage?

Casualty insurance encompasses liability coverage, which is designed to protect individuals or businesses from the financial loss arising from legal liabilities due to injuries or damages caused to another person or their property. This form of insurance is crucial in situations where accidents lead to claims from third parties for bodily injury or property damage, ensuring that the insured has the necessary support to cover these costs.

Personal lines refer more broadly to insurance products designed for individual consumers, which may include various coverages, including but not limited to casualty coverage. Property insurance specifically protects against risks related to damage or loss of insured property but does not inherently include liability coverage. Credit insurance, on the other hand, safeguards lenders against the risk of a borrower's default but does not cover liability risks. Therefore, casualty insurance is the specific line that directly includes liability coverage, making it the correct answer.