Which claim is left unsupported in the passage?
Athletes can sustain permanent injury after having a
concussion
Players and coaches would refuse to follow new
rules about concussions.
Concussion experts will help athletes only at
organized games.
Many players continue to play immediately after a
concussion

C). Concussion experts will help athletes only at  organized games.

Explanation:

In the given passage, the author substantiates all the given claims except for the claim regarding 'assistance of concussion experts being available to the athletes only at organized games.' There is no clear description regarding this claim that could verify or prove the reliability and convince the audience to believe in it. The other claims are supported with sufficient details that help establish the validity of the assertion and make them credible. Therefore, option C is the correct answer.

journalism is the gathering, organizing, and distribution of news -- to include feature stories and commentary -- through the wide variety of print and non-print media outlets. it is not a recent phenomenon, by any means; the earliest reference to a journalistic product comes from rome circa 59 b.c., when news was recorded in a circular called the acta diurna. it enjoyed daily publication and was hung strategically throughout the city for all to read, or for those who were able to read.

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