1. somber/joyous
2.
3. slow/rapid
4.
5. plain/severe
6.
7.
Answer:
I believe the answer is C
Explanation:
The reason for this answer is because the passage/article explains how the Smokey Bear campaign had helped prevent fires that are caused by human carelessness.
Jumped is one of them,
I hope this helped. c:
has a natural insight about what the words likely suggested.