Identical twins tend to have similar personalities; if environment outweighs heredity in personality development, twins raised together should presumably have more similar personalities than those raised apart. A recent study of identical twins in both situations measured 11 key traits through a questionnaire, and concluded that 7 of the 11 are primarily products of heredity.
Which of the following, if established, would cast the most doubt on the study’s results?
(A) Fewer than half of the pairs of twins studied were raised separately.
(B) The ages of all of the twins studied fell within a 10-year range.
(C) Some of the traits that the study attributed to heredity developed in the separately raised twins because those pairs all grew up in similar families.
(D) Although over half the traits measured were determined to be linked to heredity, the nature of those traits varied widely.（C）
(E) The 11 traits that were measured constitute a representative sample of larger, generally accepted pool of key personality traits.
哪位NN能帮忙翻译一下题目和答案.谢谢!
我来试一下哦
题目：同卵双胞胎趋向于有相同的性格。如果环境因素可以抵消一部分遗传带来的对性格形成的影响的话，那么在一起长大的同卵双胞胎会比分开长大的双胞胎有更类似的性格。
C有一些被归为是由于遗传性带来的（性格上的）相同性质其实是由于（后天环境因素）被分开的双胞胎在类似的家庭中长大造成的。
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