It is C because researching means your doing it right now
I thinks its she, but i may be wrong
They advertise the pros and how it would be affect to the consumer
I think what ur trying to get at is tht the article to this would be (Hannibal 16-17)
Answer: The water does not enter the bottle because of the presence of air inside it. When the bottle is dipped inside water, it applies pressure on the air present inside so as to replace it. But the air present inside the bottle applies opposite force on the water as it tries to escape through the only opening present which is surrounded by water.
