Assuming num1 is an int and answer is a double variable, which of the following expressions will always give an accurate, double-precision, answer?

(Check all combinations that give double precision accuracy - there will be more than one that should be checked.)

	A.	
      answer = (double) ( (num1 + 1.) / 100 );

	B.	
      answer = (num1 + 1) / 100 ;
	C.	
      answer =  (num1 + 1) / 100. ;
	D.	
      answer = (double) ( (num1 + 1) / 100 );
	E.	
      answer = ( ( (double)num1 + 1 ) / 100 );