Given:

What is the result?（）

A.Mr. John Doe
B.in exception is thrown at runtime.
C.Compilation fails because of an error in line 12.
D.Compilation fails because of an error in line 15.
E.Compilation fails because of an error in line 20.

A.Line 26 prints "a" to System.out.
B.Line 26 prints "b" to System.out.
C.An exception is thrown at line 26 at runtime.
D.Compilation of class A will fail due to an error in line 6.

A.The code will compile without changes.
B.The code will compile if public Tree() { Plant(); } is added to the Tree class.
C.The code will compile if public Plant() { Tree(); } is added to the Plant class.
D.The code will compile if public Plant() { this("fern"); } is added to the Plant class.
E.The code will compile if public Plant() { Plant("fern"); } is added to the Plant class.