TOW #2-Parent-Children clash over marriage

Source: Time- http://healthland.time.com/2013/09/20/why-your-parents-dont-approve-of-your-husband-or-wife/?hpt=hp_t3

      In this article from Time magazine, Francine Russo, a journalist and an author of several other writings on families and psychological themes, gives us some insight as to why parents so often disapprove of their child's choice of spouse. She writes this article for both parents and teens/young-adults in relationships to help answer the long-time question of why parents and their children clash over the child's love life. This puzzle goes back as far as the Greek myth of Pyramus and Thisbe, and includes other examples such as Romeo and Juliet.
      Russo's explanation of this issue is that it is "all in the genes." She raises the question of why parents and children never learn from this struggle, and avoid it. In a study published in the journal Evolution and Human Behavior, researchers at the university of Bristol and the University of Groningen propose that genes are a large part of the equation. Evolutionary theory suggests that both parents and their children should want a caring, supportive mate, but parents want that more their sons/daughters. The parents prioritize family background, social class, and ability to support for their children. The sons/daughters, in the meantime, search for mates/spouses that they find physically and emotionally attractive. This is what leads to many of the clashes between in-laws. If a daughter marries someone unable to support her adequately, her parents will most likely step in to help. This means that the daughter is not as motivated/pressured to find a spouse that her parents approve of. It is also possible that the daughter is able, through genetics, to sense which mate will give her the most children, his ability to support her notwithstanding. 
      The main rhetorical strategy that Russo uses here, making up over half of the article, is exemplification. To help provide the answer, and fit it into a scenario, she, and researchers at the Bristol university create an example/situation to defend their findings. I believe she accomplished her purpose of providing an answer to the parent-child-love-conflict problem because she clearly shows how her answer, genes, applies o and is a reason for the conflict.