According to the Administrative Procedure Act, which statement is true about rulemaking?

• A. It requires notice-and-comment informal rulemaking for most rules and formal rulemaking in all cases, plus standards for adjudication.
• B. It prohibits informal rulemaking.
• C. It requires formal rulemaking for all rules.
• D. It requires notice-and-comment informal rulemaking for most rules and formal rulemaking in certain cases, plus standards for adjudication.

Answer: (D)