Marion and her husband Bill are trying to bring up their children, a boy and a girl ages 4 and 5, respectively, in exactly the same way: encouraging their son to demonstrate both assertiveness and tenderness and encouraging their daughter to exhibit both independence and empathy. According to researcher Sandra Bem, these parents are encouraging their children toward:.
a) gender constancy.
b) gender schema.
c) androgynous characteristics.

C) androgynous characteristics

Explanation: According to researcher Sandra Bem, Both Marion and Bill are encouraging their children towards having an androgynous characteristics, this simply means they are encouraging the both of them to posses both feminine and masculine traits. Possessing this kind of characteristics enable people become more stable and focus as they tend to approach situations from both a feminine and masculine point of view.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.