He is a courtier, jealous of beowulf, who feels inferior to beowulf. he doubts beowulf's power to defeat grendel, claiming that it is luck that has been beowulf in his previous encounters. upon learning of grendel's defeat, unferth is impressed by beowulf and presents him his sword as a sign of reconciliation.
(a)- true
(b)- false

False.

Explanation:

Unferth offered his sword Hrunting to bewolf to fight Grendel's mother when she came to take revenge of her son's(Grendel) death.

It is true that unferth was jealous of Beowolf he also told the story of swimming contest of breca where Beowolf didn't won to lower the confidence of Beowolf to which Beowolf replied sharply.

porter is writing economic history because he is focusing on the cost of developing vaccines.