Take a look at the 4 items pictured.
Which item is the MOST different compared with the other 3?
Steve
Take a look at the 4 items pictured.
Which item is the MOST different compared with the other 3?
Steve

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<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>A is the only one that can be clearly distinguished from the others. Each picture has exactly one colour difference from A, but more than one from each of the others.</font color=yellow></span hi>
StuartR
<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow> B - it is the only one without a different colour outlining the centre dot.</font color=yellow></span hi>
B.<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>A, C and D contain two primary colours whereas B contains one.</font color=yellow></span hi>
<font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>
This is correct.
<span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow> I usually think of it as: There is something "unique" about B, C, D. A has NOTHING unique about it, making it "different"</font color=yellow></span hi>
Steve
While true, it is NOT the correct answer. I guess I should have chosen a different "alternate" color other than black for the center dot.
Steve
While true, that is NOT correct. Maybe "black" was a poor choice for an alternate circle color.
Steve
You can't say that it is B due to the fact that it has a different center dot, if you were to do that - you would have to also say that C is it - because it is the only one with a yellow background, and also D is it - because it is the only one w/ a green border...