Are responsible primarily for regulating sexual activity, socializing children, and providing affection and companionship for members. a. preindustrial familiesb. agricultural familiesc. hunting and gathering familiesd. contemporary families

Option D, Contemporary families

Explanation:

In a contemporary societies , families become part of social change and they also try to change with time. They adopt all the changes that are intended towards the growth and advancement of the educational and professional standards so that the overall impact on the family and its function increase,

These families take the overall responsibility of upbringing of children inclusive of their sexual and marriage life. These families have a better standard of living and thus they are able to dedicate more love, care and attention to their children

Hence, option D is correct

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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c

explanation: