What is the limitation of using a URL list and application control on the same firewall policy, in NGFW policy-based mode?

What is the limitation of using a URL list and application control on the same firewall policy, in NGFW policy-based mode?

A. It limits the scanning of application traffic to the browser-based technology category only. B. It limits the scanning of application traffic to the DNS protocol only. C. It limits the scanning of application traffic to use parent signatures only. D. It limits the scanning of application traffic to the application category only.