Which two statements could be inserted at line 17 to enable the function call on line 18?

Refer to the following code:

01 function Tiger(){

02 this.Type = ‘Cat’;

03 this.size = ‘large’;

04 }

05

06 let tony = new Tiger();

07 tony.roar = () =>{

08 console.log(‘They’re great1’);

9 };

10

11 function Lion(){

12 this.type = ‘Cat’;

13 this.size = ‘large’;

14 }

15

16 let leo = new Lion();

17 //Insert code here

18 leo.roar();

Which two statements could be inserted at line 17 to enable the function call on line 18? Choose 2 answers.
A . Leo.roar = () => { console.log(‘They’re pretty good:’); };
B . Object.assign(leo,Tiger);
C . Object.assign(leo,tony);
D . Leo.prototype.roar = () => { console.log(‘They’re pretty good:’); };