What code may be filled in the blank without causing syntax or runtime errors:

Question

```
public class Test {
java.util.Date date;

public static void main(String[] args) {
Test test = new Test();
System.out.println(_________________);
}
}
```
a. test.date
b. date
c. test.date.toString()
d. date.toString()

Answer 1

a. test.date
b. date
d. date.toString()
cause compile errors because date is an instance variable and cannot be accessed from static context. c is wrong because test.date is null, causing NullPointerException.