Answer:
Option C: This paragraph supports the main idea by giving reasons for the Grimms' determination to collect oral tales and give them to the German people.
Step-by-step explanation:
The paragraph contains many details that show the Grimm brothers' determination. Phrases such as "they wanted to save stories from the past," "They wanted to use details from the changing lives," and "They also wanted to show how storytelling makes strong connections" show their intentions.