translation.en: This is a bit of a difficult choice, because neither one is preferred strongly to the other, but naturally, people tend to pick number three because they liked it a little better than number four.
translation.zh: 这个选择有点困难， 因为受试者对两幅画的喜爱程度相当。 很自然，人们都倾向于选择三号。 因为他们更喜欢三号。