Final answer:
The Bayeux Tapestry is primarily about the Norman Conquest and the Battle of Hastings in 1066, with additional elements from daily medieval life and religion, given its display in a cathedral and its religious commissioner.
Step-by-step explanation:
The subject of the Bayeux Tapestry is the depiction of the events leading up to the Norman Conquest and the Battle of Hastings in 1066. Commissioned by Bishop Odo, the half-brother of William, Duke of Normandy, this embroidered linen cloth presents a Norman point of view, depicting significant events such as William's knighting and the appearance of Halley's Comet as an omen. While it also demonstrates daily medieval life through a variety of depicted objects, its primary focus is on the narrative of the conquest, making the most suitable answer to the question 'Religion' from the given options, as it was displayed in a cathedral and likely commissioned by a religious figure.