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

<passage>:
Love triumphs. True, there's a one-in-10 chance that the love gene will sink along with Loving Bob. But consider the upside. There's a one-in-two chance that Bob's full sibling Bill has the same gene and, thus, that a successful rescue mission will pluck an otherwise doomed copy of the gene from the dustbin of history. Do the math, and you'll see that, over time, Loving Bobs send more genes to posterity than Loveless Bobs. As love genes spread at the expense of indifference genes, Loveless Bobs slowly become extinct. Die, selfish scum! Genes for sibling love come to permeate our species--as, in fact, they now do. So do genes for maternal love and paternal love. All brought to you by kin selection. 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. 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 and second because people aren't really aware of doing the identifying. We don't think, "There's strong evidence that she's my daughter, so I adore her." More like, "God but my daughter's adorable." It is good news for adoptive parents that neither genetic relationship nor conscious awareness of genetic relationship is a prerequisite for love. Still, it is bad news that maternal bonding begins with hormones at birth. It is also bad news that breast-feeding, which adoptive mothers usually can't do, releases the bonding hormone oxytocin. Then again, there is no reason in principle that adoptive parents couldn't take Pitocin once a day for synthetic bonding sessions. (Oxytocin seems to be part of the bonding formula in men, too.) Besides, some genetic mothers aren't conscious at birth, and many don't breast-feed, yet they all nonetheless wind up loving their kids. As the many successful adoptive parents know, lots of the magic moments that add up to durabonding have nothing to do with birthing or breast-feeding. (Tiny tots, with their eyes all aglow ... ) 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 .) Misconception No. 3: Our genes, though perhaps not real smart, aren't downright stupid . Here we come, at last, to the true absurdity of familial love. As we've seen, the genes that sponsor it flourished by encouraging an "altruism" that was, in fact, self-serving at the genetic level (the inexorable triumph of Loving Bob's genes). As we've also seen, these genes can be "fooled" into encouraging altruism toward non-kin, altruism that presumably is not self-serving at the genetic level. Still, you might argue, in defense of your genes, they usually direct familial love toward genuine kin, and thus usually succeed in being efficiently selfish. Wrong! When genes confine altruism to kin, and deny it to needy non-kin, they are in fact failing spectacularly to be efficiently selfish. Because nowadays, copies of these genes do reside in non-kin--in your next-door neighbor and, for that matter, your worst enemy. After all, the Darwinian logic behind love of kin was so relentless that these genes permeated our entire species! Loveless Bob is extinct, remember? 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 argument does the author make about why modern humans are genetically selfish?

<options>:
A Supporting our immediate blood relatives doesn’t help our familial genes persist to the next generation
B Modern humans do not share most of their genes in common, making them selfish
C We fail to see that all modern humans share most of their genes in common, thus, helping any human is helping our genes pass on even if they are unrelated
D Being genetically selfish still helps altruism pass on through modern humans

<answer>:

C