The solution of this question is (2,-1).
D. With caution against ill use, science can give us great knowledge and progress.
Explanation on how to answer:
Read the story and figure out whats missing. Without the whole story, no one can tell you what important part is missing. Find the section that that excerpt is from and see what the differences are, or post the full story.
It's C!
In most cases you can't put AND after a period but in this case u can.
