Answer:
If it were me I would put the two words starting the two paragraphs as "So" and "The"
Explanation:
P.S. I don't know the exact answer this is just what I personally would put. To help you a little more the two words follow along with this. "So in order" and "The first of these"
Answer:
your answer would be A.
Explanation:
Is the one that mostly makes sense because it indeed shows the origin, history, and strength of HALS..
Hope this helps you.. ;)
