How are families different now than they were in earlier times?

Family's in the past usually was seen as a nuclear family, with the dad as working, and the mom as staying home.

However, in today's society, most family's are not nuclear families, either with LGBTQ+ families or, as more common, single-parent families. There is very little healthy relationship within these types of families, the single-parent family being hard, while the LGBTQ+ family being destructive.

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a.) carbohydrates

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is there any answer choices to this?