A firm decision
or
a solution to a problem
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do this because the newer the information, the more credible it is in the time (older information could easily be outdated).
Answer
A) Your past does not define you.
Explanation:
A theme is the live lesson that the author wants you to learn or the message that the author wants to give you through the story.
Hope this helps!