1. abstract class Abst

1. abstract class AbstractIt {  2. abstract float getFloat（）；  3. }  4. public class AbstractTest extends AbstractIt {  5. private float f1 = 1.0f；  6. private float getFloat（） { return f1； }  7. }  What is the result？（） 

• A Compilation succeeds.
• B An exception is thrown.
• C Compilation fails because of an error at line 2.
• D Compilation fails because of an error at line 6.