Which statement about coordinating WC/EL with other lines is most accurate?

Which statement about coordinating WC/EL with other lines is most accurate?

• A. WC coverage replaces GL and auto entirely.
• B. GL coverage negates WC.
• C. WC/EL coordination with GL/auto is optional.
• D. WC/EL coverage coordinates with other lines to avoid gaps or duplication; liability lines typically supplement WC.

Answer: (D)