functionPerson(firstName,lastName){this.firstName=firstNamethis.lastName=lastName}constlydia=newPerson('Lydia','Hallie')constsarah=Person('Sarah','Smith')console.log(lydia)console.log(sarah)A:Person{firstName:“Lydia”,lastName:“Hallie”}和undefinedB:Person{firstName:“Lydia”,lastName:“Hallie”}andPerson{firstName:“Sarah”,lastName:“Smith”}C:Person{firstName:“Lydia”,lastName:“Hallie”}and{}D:Person{firstName:“Lydia”,lastName:“Hallie”}andReferenceError参考答案：
