The important part was knowing that being black you can still live and be what you want
A. <span>Christine ran slower than her sister.
<em>Slower </em> is comparing Christine's speed to the speed of her sister.
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You should look at web sources that have recently been updated because a lot of times new information is present that could change the original point/evidence. This could discredit the source. You also should do this because the newer the information, the more credible it is in the time (older information could easily be outdated).