William:
- Are you familiar with any important research dealing
with early child development and education?
Patrick:
- Yes, I am. I’m currently reading the work of Vygotsky
and his most famous contributions on the 'Zone of
Proximal Development'.
William:
- I’ve read that also. It suggests that children learn best
from other children who are close in age and ability to
the learner’s current level.
Patrick:
- ----
William:
- In a supportive interactive environment, children are
able to advance to a higher level of knowledge and
performance. So, interactions among children
contribute a lot to the learning process.

Which of the following completes the dialogue?