Which two code fragments are most likely to cause a StackOverflowError?（）

多项选择题Given: Which four code fragments, inserted independently at line 7, will compile? （）

A.public void m1() { }
B.protected void m1() { }
C.private void m1() { }
D.void m2() { }
E.public void m2() { }
F.protected void m2() { }
G.private void m2() { }

单项选择题Given: Which statement is true about the class of an object that can reference the variable base? （）

A.It can be any class.
B.No class has access to base.
C.The class must belong to the geometry package.
D.The class must be a subclass of the class Hypotenuse.

单项选择题Given: What is the result?（）

A.foofoofoofoofoo
B.foobarfoobarbar
C.foobarfoofoofoo
D.foobarfoobarfoo
E.barbarbarbarbar
F.foofoofoobarbar
G.foofoofoobarfoo

多项选择题Given: Which two, independently, will allow Sub to compile?（）

A.
B.
C.
D.
E.

单项选择题Given: What is the result?（）

A.peep
B.bark
C.meow
D.Compilation fails.
E.An exception is thrown at runtime.