>>13308572Let's say a blank spot means 0, a white triangle means 1, and a striped triangle means 2.

Then, let's suppose the top-leftmost triangle is the first triangle, the spot underneath it is the second, the top-rightmost triangle is the third, and the spot underneath that is the fourth.

We can then arrange this picture like so:

2001 | 0121 | 2222

0102 | 2202 | 2010

2002 | 0210 | ????

If we look at these numbers diagonally (in the direction the line the triangles rest on) starting from the top, we can arrange three sequences like so:

2001 -> 2010 -> 0210

0121 -> 0102 -> ????

2222 -> 2202 -> 2002

I notice that, in the first sequence, the rightmost numbers swap, then the leftmost numbers swap. "2001" turns into "2010", then "2010" turns into "0210".

In the second sequence, instead of swapping, the "2" replaces the "1", going from "0121" to "0102". I'll go ahead and assume this was because the "2" was NOT a "0", like in the example before.

In the third sequence, again instead of swapping, the "22" turns into "02". Like the second sequence, this may be due to the fact that one of the "2"s was not a "0". Thus, "2222" turns into "2202", and "2202" turns into "2002".

So, what would "0102" turn into? I believe that a swap would occur on the leftmost side, as one of the digits IS a "0", and thus "0102" turns into "1002".

Therefore, what I believe to be the correct answer is E.