The correct answer is (b) Forefather's Day.
The town of Plymouth, Massachusetts celebrates Forefather’s Day on December 11 every year. They celebrate this day to honor the founders of Plymouth colony in 1769. The celebration on this day starts at 6:00 AM in the morning. The members participate in the march and climb the top of Cole's Hill, which is close to Massasoit's statue. After the march, reading of a proclamation and ritual firing is done in the honor of the forefathers.