>>13368008---------------------(your question)----------------------
I think it's most likely F.
Reason being, going from bottom left to middle to top right, the triangles increase by one and going of symmetry its the inverse.
the other triangles also increase by one going anti clockwise starting from middle right. These triangles also have alternating colors (i.e. top white, next is top black, next is top white, next is top black. (i think the the triangles orientation are just there to mess with you for these four)
i could also be fucking wrong through...
-----------------(Different Question)-------------------
Also i found the original on a Russian website (some dumb shit about solving these patters correlate to IQ) The original has a better framing of the question
spoilers in this one, its F.
(i.e. the top row shows the addition of different color squares have no affect (only the product), middle row shows the affect of different colors being added on-top of one another (white on white subtracts, while black on white subtracts and move the remainder left by one)
it's F because i think since its not show when White is added to black, it can be assumed there is no effect
site:
http://splushka.com/intellect.htm