<span>I am not sure but, my guess is Götz</span>
Answer:
C. Face many dangers to marry her.
Explanation:
It says "My mother said if Yue-lao intends for me to marry someone other than the rich old man, he will be strong enough to swim the lake and brave..."
Jonas because he is an essential key
Isolation means isolated from others, therefore your away from others, or disclosed.