B.) Their Japanese ancestry would lead Japanese Americans to side with the enemy.
Explanation:
After Japan's attack on Pearl Harbor, amid concerns that Japanese American citizens might pose a threat to national security arouse. These concerns were driven by public hysteria grounded in racism and false reports of sabotage and collaboration with the enemy. The U.S basically placed Japanese Americans into internment camps during World War II because of fear that those with ethnic and cultural ties to Japan would aide Japan's cause in the war.
Wiglaf is presented as a model of loyalty. He understands what the anglo-saxon code is like and believes in Beowulf without any doubt. He is brave and willing to help Beowulf and criticizes the other warriors for not behaving the same. This is why he is later appointed as Beowulf's heir.
