The early humans’ way of life made it impossible for them to live in which kind of shelter?

a.
rock shelters in cliffs
b.
tents
c.
permanent homes
d.
caves

The early humans' way of life made it impossible for them to live in C) permanent homes. The sedentary lives of the first humans made it hard for them to live in one place, as they had to hunt, forage and gather food for their communities according to seasons and supply in the area they were living and this was interchangeable over time, so for this reason they had to move around.

Interpreting the results of his experiment : )