Final answer:
The true statement is that William of Orange was married to James II's daughter, Mary, and was thus in line for the throne of England. This fact played a significant role in the Glorious Revolution.
Step-by-step explanation:
The statement about Queen Victoria being lonely is not part of the historical fact in question here. Regarding the question about William of Orange, it is true that he was married to James II's daughter, Mary, and through this marriage, he was in line for the throne of England. The true statement is that William of Orange was married to James II's daughter, Mary, and was thus in line for the throne of England. This fact played a significant role in the Glorious Revolution.This fact is an essential part of British history, particularly the events leading up to the Glorious Revolution where William and Mary ascended the throne together after James II was deposed.