Notice that in lines 153-159 (pages 47-48), Beowulf boasts about past victories that required superhuman strength and courage. Why might the people of Beowulf’s time have valued such traits?

d. The people of Beowulf's time might have valued great strength and courage because  they were frequently attacked by enemies.

Explanation:

People in Beowulf's time probably had a lot of enemies attacking them as evident by the coast guard thinking Beowulf and his company had come to invade Denmark when he first arrived. Also they were being attacked by a monster named Grendel every night.

It is therefore logical to assume that hearing stories of people who were strong and courageous made them feel at ease because they felt like they could be protected if the time came. They probably also looked up to such people and admired them for being strong enough to vanquish enemies.

yes this is an analog in my view