Which of the following are valid Java identifiers? (Choose all that apply)
A, B, E.
A is valid since dollar sign is valid identifiers.
B is valid since an underscore is valid identifiers.
C is not a valid identifier since true is a Java reserved word.
D is not valid since . is not allowed in identifiers.
E is valid because Java is case sensitive, so Public is not a reserved word.
F is not valid because the first character is not a letter, $, or _.