A: Person {firstName: “Lydia”, lastName: “Hallie”} and undefinedB: Person {firstName: “Lydia”, lastName: “Hallie”} and Person {firstName: “Sarah”, lastName: “Smith”}C: Person {firstName: “Lydia”, lastName: “Hallie”} and {}D:Person {firstName: “Lydia”, lastName: “Hallie”} and ReferenceError