17 What happens here (note that the line numbers are not part of the code)? 1. public class Foo 2. 3. private int variable; 5 public Foo(int variable) this.variable variable; ) 6. 7 public void bar(Foo f [variable -f.variable,) 9. Foo f1 new Foo(3); 10. Foo f2 new Foo(3), 11. f1.bar(12) O Compiler error on line 7; one object may not access the private features of another object Compiler error on line 11, one object may not access the private features of another object Compiles but generates a runtime error on line 7 Compiles but generates a runtime error on line 11 Compiles and runs without error O