What is true of this code? (Choose two.) 

A. The code compiles as is.

B. One line needs to be removed for the code to compile.

C. Two lines need to be removed for the code to compile.

D. One line of code uses autoboxing.

E. Two lines of code use autoboxing.

F. Three lines of code use autoboxing.

26: List strings = new ArrayList (); 27: var ints = new HashSet (); 28: Double dbl = 5.0; 29: ints.add (2); 30: ints.add (null);