Your answer is irregular past tense
The two factors of a market/business
supply and demand
customers, SUPPLIERS, and procedures
Answer should be A) because its recent so it means that's its up to date and not outdated and its about NEW control methods so it matches up, its not B) because that's illnesses not methods, not C) because that's not methods, and not D) because that's not even a method.
I think the correct answer from the choices listed above is option B. The transition word that would best replace the underlined word would be however. It is <span>used to introduce a statement that contrasts with or seems to contradict something that has been said previously</span>. Hope this helps.
Answer:
hgigigigigigigg8g8viivv8v8v8v