Answer:
Option: B. 1980s
Explanation:
For the first time during the 1870s, America came across homelessness. Homelessness were people known as tramps, traveled one place to another in search of work. In the modern period, the 1980s saw the emergence of homelessness, which became a serious problem for the government as well for the people living in America. The situation of these people began when the upscaling took in the inner city, moving of the mentally ill, unemployability, and short supply of affordable housing.
According to Vygotsky, the level at which a child cannot fully perform a task independently, but can do so with the assistance of someone more competent would be the zone of proximal development or ZPD. It would refer to the difference of a learner's capability of performing a task without any assistance and one with assistance. <span />
I would disagree because the ice age was nothing but ice.
