The correct answer is D.
OBJ-1.8: Secure Multi-Party Computation creates methods for parties to jointly compute a function over their inputs while keeping those inputs private. Private Function Evaluation (PFE) allows two parties to jointly evaluate a private function without revealing their respective inputs. Secure Function Evaluation (SFE) allows two parties to jointly evaluate a publicly known function without revealing their respective inputs. Private Information Retrieval (PIR) retrieves an item from a service in possession of a database without revealing which item is retrieved.