"The Tuatha Dé Dannan had recently descended upon Ireland's emerald shores. Their name means "tribe of the gods," and gods they were. The Tuatha Dé
Dannan came to the coast of Connemara in clouds of mist. Some say they sailed into
the harbor like men and burned their boats, creating smoke that spread out across
the land. Others swear that they came down from the heavens on dark clouds like a
fine rain. These supernatural beings brought with them
three days and three nights
of complete darkness, a harbinger of changes to come. No one knows the true story
of how the Tuatha Dé Dannan arrived in Ireland. But everyone knows how they
fought their way across the land until it was theirs."
What type of referring pronoun is Their from the second sentence?
Object Pronoun
Reference Pronoun
Possessive Pronoun
Subject Pronoun