I Believe the answer is: <span>Iron and coke (low-sulfur coal).
For the past decades, </span><span>Iron and coke (low-sulfur coal) industry in Mexico has shown a healthy average of 6% Growth annually.
Because of the resources in </span><span>Iron and coke (low-sulfur coal), Mexico has always maintained the top 15 steel producers in the world.</span>
The one that are bolded means I am not sure that they are the right answer, but I am pretty sure they are correct.
I also don't know the page numbers where you would find your answer, so you may have to do that on your own.
1. d
2. e
3. b
4. a
5. c
6. a
7. c
8. a
9. a