Answer: certificate of completion
The addition that should be made to qualify the claim is A. However, while it is true that these traits can be acquired through part-time jobs, not all work environments are conducive for this development
<h3>What is a Claim?</h3>
This refers to the statement or assertion that is made about a particular thing that needs supporting details to validate it.
Hence, we can see that from the complete text, there is a claim made by the<em> Center for Work Ethic Development</em> that part-time jobs result in teens developing beneficial soft skills and this can be qualified in option A.
Read more about claims here:
brainly.com/question/2748145
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The theme of this paragraph is that you can never expect the unexpected ;-;
B hope this helps you with that question
Answer:
C. Writers read and comment on each other's work.