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@TheFacu you can access the video explanation for this question by selecting the video icon in the top right hand corner of the screen when viewing the question. Hope this helps! Please let us know if you have any other questions.

It doesn't show why D is wrong...

@ariella sorry about that! This hypothetical proves that Tran does not have to attend Goal Sharing: F : S R G: Q S H: None I : Q T L: T R Hope this helps! Please let us know if you have any other questions.