Answer: We´ve studied a lot this week
Explanation:
An average American drinks 53 gallons of soft drinks per year.
If a soda ban was to be made, more American will drink soda and its average gallons will rise. This is because they tend to hoard soft drinks and drink more than their usual yearly intake.
https://www.nytimes.com/2017/01/10/us/politics/obama-farewell-address-speech.html
Barack speaks about his presidency, the future presidency and the way the United States made him better. He proves his points by backing it up with past events.
"Whether we have seen eye-to-eye or rarely agreed at all, my conversations with you, the American people — in living rooms and in schools; at farms and on factory floors; at diners and on distant military outposts — those conversations are what have kept me honest, and kept me inspired, and kept me going. And every day, I have learned from you. You made me a better president, and you made me a better man."
The answer is b
Because they don’t know what to expecting the world but elders have probably already been there and did that
