Solution

The correct answer is Option 2: B, C Only

Key Points

• Statement B: ✅ In STRIPS representation, features describing the state of the world can be divided into **primitive features** (directly observable and cannot be derived from other features) and **derived features** (computed based on primitive features).
• Statement C: ✅ STRIPS representation defines actions in terms of their **preconditions** (conditions that must hold true before the action can be executed) and **effects** (changes to the state of the world caused by the action).
• Statement A: ❌ STRIPS is not explicitly referred to as a "feature-centric representation." It is more commonly described as a symbolic representation of actions and states using logical predicates.
• Statement D: ❌ STRIPS does not inherently support conditional effects. Conditional effects require extensions to the basic STRIPS framework.

Additional Information

• STRIPS: The Stanford Research Institute Problem Solver (STRIPS) is a formalism used to represent planning problems. It uses logical predicates to describe states and actions.
• Preconditions: Preconditions specify the conditions that must hold true for an action to be applicable.
• Effects: Effects describe the changes to the world state after an action is executed.
• Extensions: Conditional effects and other advanced features are typically added in more sophisticated planning frameworks beyond basic STRIPS.

Hence, the correct answer is: Option 2: B, C Only