Given the following class: 

And given the following main method, located in another class: 

Which three lines, when inserted independently at line n1, cause the program to print a 0 balance? 

Answer options:

A. this.amount = 0;
B. amount = 0;
C. acct (0) ;
D. acct.amount = 0;
E. acct. getAmount () = 0;
F. acct.changeAmount(0);
G. acct.changeAmount(-acct.amount);
H. acct.changeAmount(-acct.getAmount());

ACD