Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
As modern Darwinism gets popularized, the basic idea of kin selection is approaching the status of conventional wisdom. So are some attendant misconceptions. Misconception No. 1: Genes are smart . People often assume that kin-selected altruism is foolproof that a gene can magically sense copies of itself in other organisms--or, at least, can somehow ascertain with perfect accuracy which organisms are close relatives of its own host organism and thus may carry copies of itself. In truth, genes aren't omniscient, or even sentient. If kin-selected genes are going to induce love of kin, they'll have to determine who qualifies as kin in some pedestrian and probably fallible way. For example: Back when Loving Bob was 6 years old, if his mother was nursing some infant named Bill and sleeping by its side every night, there's a very good chance that Bill was Bob's sibling. So a gene disposing Bob to love children whom he sees his mother nurturing could spread through the population until everyone obeys the same rule. But this rule would misfire now and then, when a mother is for some reason nurturing a non-offspring. It's just that the misfiring wouldn't happen often enough to greatly dilute the genetic math favoring the gene's proliferation. Little is known about which rules for identifying kin--"kin-recognition mechanisms"--do operate in our species. But clearly, they are fallible. Even mothers, who you'd think would have a damn good idea of who their offspring are, can in principle be fooled. When hospital staffers for some reason handed hours-old Kimberly Mays to a mother who was not hers, the mother's kin-recognition mechanisms--a k a bonding processes--kicked in. This woman wound up loving Kimberly like a daughter (though the mother died two years later, so that Kimberly was reared mostly by a stepmother). Meanwhile, Kimberly's genetic mother, having missed years of bonding, can never love Kimberly quite like her own child, even though Kimberly is her own child. Because genetic relationship per se doesn't matter. This irrelevance of genes is why surrogate motherhood is so messy. Even when, thanks to in vitro fertilization, the birth mother is unrelated to the fetus she carries, she will, upon giving birth, fall in love with the child. During evolution, after all, having a baby come out of your womb was reasonably strong evidence of kinship. The power of the hormones that govern this bonding is familiar to anyone who has watched a woman clutch her just-born child and turn into a love-drunk cuddle-bunny. (When my wife went through this magic moment, I briefly considered snatching the baby and replacing it with an 8-by-10 glossy of myself.) This hormonal power was also observed by researchers studying oxytocin, a hormone that's present in human and other mammalian mothers at birth. The researchers put it in a syringe and used it to shatter all previous records for cuddling among laboratory rats. By the way, the synthetic version of oxytocin, Pitocin, is what doctors use to induce labor. Misconception No. 2: People are smart--or, at least, they are smart Darwinian robots . Darwinian theory does posit that homo sapiens were "designed" to get their genes into the next generation, but not that they were designed to do so consciously and rationally. As surrogate mothers have proved, knowing that you've given no genes to an infant needn't stop the bonding process. Thus, "kin- recognition mechanism" is a doubly misleading term--first because, as we've seen, the mechanism doesn't positively identify kin, but just identifies factors correlated with kinship Anyway, the main point is that when genetic parents give up a child for adoption and have second thoughts weeks, months, or even years later, their appeals to blood ties should count for zilch. Their love of their child, and their child's love of them, depends not on genetic math but on a long and complex chain of bonding, much of which they have already voluntarily missed out on. Similarly, the idea that Native American babies, or black babies, or whatever, have some mystical genetic affinity with their "own" kind is silly. Obviously, cross-ethnic adoption is dicey. It draws sidelong glances and playground taunts, and it may give the adopted child an identity crisis. But it won't do this because of some ancestral memory in the genes. As attitudes change, cross-ethnic adoption will get easier and as cross-ethnic adoption gets more common, attitudes will change. (There are other pop-genetics arguments against cross-ethnic adoption, and against adoption in general. One is that genes influence personality so powerfully that mixing unrelated siblings is like mixing oil and water. This idea is .) You can be forgiven for doubting my logic. People like me, in writing about kin selection, often talk about full siblings sharing "half their genes," implying that nonrelatives share none. But in truth, you share virtually all your genes with any randomly selected homo sapien on any continent. What people like me really mean is that full siblings share half of any genes that are newly minted--genes that have recently arisen and on which natural selection is just starting to pass judgment. Genes that natural selection fully endorsed long ago--the basic genes for hunger, for lust, for familial love--are in everyone. So genes that originally flourished by bestowing love with discerning selfishness--by discriminating against people not containing copies of themselves--now, having spread through the species, discriminate against people who do contain copies! You may doubt that natural selection, a process that supposedly maximizes genetic selfishness, could fail so abjectly to do so. But it's true. . So this past holiday season, as you rushed to buy presents for your kids or your siblings or your nieces or nephews, impelled by "selfishly" altruistic genes, you were operating under flawed Darwinian logic. These "selfish" genes could do just as much for themselves by encouraging you to instead spend your money on the beggar outside the department store. In fact, they could do more, since the beggar is closer to perishing than your relatives are. (Also, the beggar might buy something useful such as food, as opposed to a hair-eating Cabbage Patch doll.) But our genes are too stupid to so deftly serve their own welfare. Not that I attach much weight to what is and isn't "good" from the standpoint of genetic self-interest. As virtually all ethical philosophers who have pondered the matter agree, it doesn't make sense to model our moral values on the logic of nature anyway

<question>:
What weight does the author give to the importance of kin-selection earlier in human evolution?

<options>:
A Early humans had no familial bond with kin, disrupting kin-selection through human evolution
B Traits of kinship were important to familial genetics being passed on, thus kinship was also selected for in early human evolution
C Kin-selection was never all that important to human evolution because altruism would have always been in human DNA
D Traits of kinship would be detrimental to familial genetics being passed on

<answer>:

B