If there is exactly one painting between the Turner and the Whistler, which one of the following must be true?

MikeND on September 23, 2020

Answer choice C incorrect

I watched the video and understand why E is correct, but is C incorrect because the R_M chain could be in 5-7 instead of 4-6 (and the T_W chain could instead be in 4-6, meaning that R doesn't have to be in slot 4)? Thank you!

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liwenong28 on October 25, 2020

I am not an instructor, but I had the same question cause I picked C over E. From the setup in the video you could swap the R_M and T_W blocks around and have R in slot 5 too! Hope that helps!