GAMSAT Physics Q: Can't Understand Answer? Get Help Here!

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The discussion revolves around a GAMSAT physics question where a user is confused about the correct answer, which is stated to be C. Another participant suggests that the answer should be B, calculating a force of 240/7 N, assuming the pulley is at rest. The original poster confirms that the pulley appears to be at rest in the provided image. The conversation highlights the need for clarification on the physics principles involved in the problem. Participants are encouraged to provide explanations to resolve the confusion.
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http://prepgenie.co.nz/gamsat/gamsat-questions/gamsat-sample-physics/
hey there's a question here if you scroll down a bit, i don't understand how the answer is C
can you please explain this to me cheers, and much appreciation to any that help.

:)
 
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You sure answer is C.. If we assume pulley is at rest.. by me it should be B, 240/7 N..

EDIT: And the pulley does seem at rest in image (it didn't download earlier!)
 

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