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.
The answer is C.
A is not, because the cowboy's appearance is not relevant to his personality as a round character. Same general idea for B and D.
The mood is troubled and amazed.
Troubled: When all the kids laughed at him
Amazed: When he started dribbling. His coach was amazed
A and C
A: Other writers in these communities often suggest great writing topics.
C: You receive feedback from people who understand the craft of writing.
The other two don’t seem plausible. Sorry if it’s incorrect.