What is a capability of an agentless configuration management system?

What is a capability of an agentless configuration management system?
A . It requires managed hosts to have an interpreter for a high-level language such as Python or Ruby.
B . It requires managed hosts to connect to a centralized host to receive updated configurations.
C . It uses compiled languages as the basis of the domain-specific language to interface with managed hosts.
D . It uses existing protocols to interface with the managed host.

Answer: D