what is/are true about the widgetCount variable? : Questions « Java Source And Data Type « SCJP

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class MyClass {

}

class Widget extends MyClass {
  static private int widgetCount = 0;

  static synchronized int addWidget() {
    widgetCount++;
    return widgetCount;
  }

  int anotherMethod() {
    return widgetCount;
  }

}
   A. methods in the Widget class can access it.
   B. only the addWidget method can access it.
   C. If another class tries to access widgetCount, a runtime exception will be thrown.
   D. only methods in the Widget class and any derived classes can access it.