关于前端:选择篇021下面代码的输出是什么

function Person(firstName, lastName) {  this.firstName = firstName;  this.lastName = lastName;}const member = new Person("Lydia", "Hallie");Person.getFullName = function () {  return `${this.firstName} ${this.lastName}`;}console.log(member.getFullName());

A: TypeError
B: SyntaxError
C: Lydia Hallie
D: undefined undefined

参考答案：