阅读下列短文, 从每小题所给的A、B、C、D四个选项中, 选出最佳选项.

    For too many, the damage begins early in life. Four out of 10 babies born in the United States do not form a strong relationship with either parent, and they will pay for that the rest of their lives.

    New research from Princeton University confirms what other researchers have already found: The number of babies born into families that are too poorly equipped(装备、配备) to give them a fair chance of having a successful life is very big.

    That finding is supported by many other research Projects, including a study from the University of Rochester showing that nearly one-third of U.S. parents don't know what to expect from their new horns, or how to help them grow and learn and get along with others. Babies, as others have pointed out, don't come with an owner's manual.

    The basic problem, according to the Princeton study, is 40 percent of infants in the U.S. live in fear or distrust of their parents, and that will turn into aggressiveness（侵犯）, defiance（挑衅） and hyperactivity（多动） as they grow into adults.

    Of that number, 25 percent don't have a close relationship with their parents because the parents don't satisfy their needs. And 15 percent find their parents so troubling that they will avoid them whenever possible.

    That will not necessarily result in a lifetime of violence(暴力), but it will make living a successful life much more difficult.

"They can overcome(克服) it," sociologist (社会科学家) Sophie Moullin of Princeton, lead author(作者) of that study, said in a telephone interview. "It's not a make or break situation, but they might find it harder to control their behavior."

    Moullin, along with coauthors from Columbia University and the University of Bristol in England, analyzed(分析) more than 100 research projects, to reach their conclusions.

    There are many factors, including poverty(贫穷), ignorance（无知）, and stress among parents who are so busy with their own problems that a new child is sometimes more than they can deal with.

    Yet strong relationships, the researchers say, are amazingly simple to achieve.

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                                                                                        植物聊天
        ①随着科技的进步，计算机网络已成为人们传递和获取信息的重要途径。近日，有科学家研究发现，原来人们眼中那些被动的、只能站在一个地方等待被砍掉或吃掉的植物，也像人类一样，都会构建自己的联络系统。特别是草本植物，例如草莓、芦苇或是羊角芹都能自发地构建这种系统。
        ②在这个联络系统中，每一株植物都会释放和接收特殊信使物质所携带的信息，并与其他植株共享信息。这种传递信息的方式和人类的网络聊天十分相似，因此科学家形象地称之为“植物聊天”。但是让人们好奇的是，植物们在这个聊天网络里都聊些什么呢?
        ③科研人员发现，一些聪明的植物会在危险迫近的时候通过这个网络传递警告信息，从而有效地减轻植物受侵害的程度，提高植物的生存能力。如果有一株植物被毛虫咬食了，那么在同一个网络中的其他植物都会接到内部的警告信号。在接到警告信号 之后，那些还没有被咬食的植物就会进行化学物质防御和机械防御，使自己不易受到侵害。此时，毛虫就像打了败仗的士兵，无计可施了。可见，聊天网络功不可没。
        ④当然，任何事物都可能有利弊两个方面，植物的聊天网络也是如此。就好比计算机网络上流行的病毒，在植物聊天网络中，有些特殊病毒就利用网络进行传播，致使整个网络内的植物都可能被感染。
         ⑤这项研究令人称奇的地方，在于它改变了人们对植物的传统认识。现在我们才发现，我们身边那些最常见的植物其实早就是网络聊天的高手了。