What does universal currency mean? *extra points

c. hope this                                    

firefighting brigades.

i'm guessing that you meant these options:

1. through the character's own words

2. through what other characters say

3. through narration about the character

4. through the actions the character takes

5. through the way others behave toward the character

if these were the options, the answer would be numbers 1, 2, 4, and 5