A. pie chart mainly because a line graph mainly just shows numbers where as the pie chart normally shows percentages
I believe that the answer to the question provided above is that the act which was violated in this scenario when Karen received her credit card statement specifying that the due date to pay the bill is January 30, is the consumer act.
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A primary source. That would be a source coming directly from someone who was in the war so you know it is reliable and probably the most accurate. A secondary source could be from a journalist or an outside mind that doesn't know the true experience of being in the war and is just observing from an outsiders view.
Based on the situation, that was an example of : Free-Rider problems
Free-rider problems refer to a condition when an individual either consume more than the fair share or pay less than the fair share.
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