OK, according to a bunch of scientists you should be able to solve this.

These are artificially generated faces, based on research data. One of the two faces of each gender has the "sex-adventure" type face whereas the other face is the "long-term relationship" type face. So in total there are 2 faces of each type, one male and one female.


I got it right.

For the poll, LEFT is A and RIGHT is B.


Do you best.