Answer: B. Grandeur
Step-by-step explanation:
The qualities of Heorot that are depicted by these lines depict is grandeur. Grandeur means awesomeness, splendour and impressiveness, with regards to one's appearance or style.
Darkness is incorrect as the lines doesn't depict darkness. Strength and elegance aren't the correct option as well. Therefore, the correct option is B "Grandeur''.