Answer:
a. values
Explanation:
The values() method returns an array of all values of an enumeration. This method is defined automatically by the java compiler for the enum data type.
For example:
enum Traffic_Signal {RED,YELLOW,GREEN};
for(Traffic_Signal t : Traffic_Signal.values()){
System.out.println(t);
}
This code segment will print out all the valid values in the Traffic_Signal enumeration.
