The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness. A. The fact of some fraternal twins resemblingeach other greatly and others looking quite dissimilar highlights aninteresting and often overlooked feature of fraternal-twin pairs, namely theyvary considerably
B. That some fraternal twins resemble eachother greatly while others look quite dissimilar highlights an interesting andoften overlooked feature of fraternal-twin pairs, namely that they varyconsiderably
C. With some fraternal twins resembling eachother greatly and others looking quite dissimilar, it highlights an interestingand often overlooked feature of fraternal-twin pairs, namely considerablevariation
D. With some fraternal twins resembling eachother greatly and others looking quite dissimilar, it is a fact that highlightsan interesting and often overlooked feature of fraternal-twin pairs, namely aconsiderable variation
E. Because some fraternal twins resemble eachother greatly and others look quite dissimilar, this fact highlights aninteresting and often overlooked feature of fraternal-twin pairs, namely theyvary considerably 看的很晕 求解
此题看点在于命题老头对原句精妙的改写。请看： That some fraternal twins resemble each other greatly while others look quite dissimilar 意思上是不是等于 that they vary considerably 所以这个句子的原貌是 That some fraternal twins resemble each other greatly while others look quite dissimilar, namely that they vary considerably，（到此处为主语） highlights（谓语） an interesting and often overlooked feature of fraternal-twin pairs。
