Why would the government require rationing? A. To regulate the value of the dollar
B. To limit purchases
C. To establish trade barriers
D. To improve profits

B to limit purchases

Explanation: A good example of this would be WW2 when supplies worldwide were dwindling. The US and many other countries had to resort to rationing to make sure everyone had at least some food and so that a small amount of people didn't hoard it all.  

i thinl it is the 1st answer

this defines the ability for a flex item to grow if necessary. it accepts a unitless value that serves as a proportion. it dictates what amount of the available space inside the flex container the item should take up.

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