Final answer:
Valor and loyalty are the two virtues from Beowulf most valued in a warrior society, representing the cultural emphasis on bravery and fealty in Germanic tribal dynamics.
Step-by-step explanation:
The two virtues of Beowulf that are particularly important in a warrior society are valor and loyalty. These virtues align with the ethos of Germanic warrior cultures, where physical courage in battle and steadfast commitment to one's leader or community were highly prized. The epic poem Beowulf, which documents the hero's bravery and his unwavering allegiance to his king and kinsmen, serves as a powerful example of these warrior attributes in action. Therefore, the correct answer is a) Valor and loyalty.