Final answer:
Attorneys within DCF's Children's Legal Services are guided by Dependency Court Rules, which provide the framework for courtroom procedures in dependency cases.
Step-by-step explanation:
The question asks about what governs the operation of attorneys within DCF's (Department of Children and Families) Children's Legal Services and what guides these attorneys on courtroom procedures in dependency cases. The correct answer is D. Dependency Court Rules. These are the specific rules that dictate how such cases are to be conducted in court, including how attorneys should operate and behave. While DCF regulations, state legislation, and child welfare policies certainly influence practice and procedures, it is the Dependency Court Rules that provide the framework for courtroom conduct in these cases.