It would be d because:
C=2(3.14)(5)
And all of that would equal 31.4 meters
I believe that the answer would be The 3rd one. I Think. Hope this helps.
Answer:
1. a
2. c
3. b
4. c
5. c
Explanation:
1-3 in the text, more or less verbatim.
Question 4, we have to infer. The phrases like "we need to" and "remember how important it is" suggest that the author wants us to keep that in mind and possibly change our behavior, so persuasion seems like the goal.
Question 5 - well, abundance means "plenty", so there it is.