01 class Student {
02 constructor(name) {
03 this._name = name;
04 }
05 displayGrade() {
06 console.log(`${this._name} got 70% on test.`);
07 }
08 }
09
10 class GraduateStudent extends Student {
11 constructor(name) {
12 super(name);
13 this._name = "Graduate Student " + name;
14 }
15 displayGrade() {
16 console.log(`${this._name} got 100% on test.`);
17 }
18 }
19 let student = new GraduateStudent("Jane");
20 student.displayGrade();
```
What is the console output?: