The students in Ms. Lemley's class are working on a project in which their collaborative groups take different positions on an issue related to the world economy. They conduct research and discuss ideas that support their positions. After each group presents its position and defense, the entire class discusses pros and cons of proposed positions. These students are involved in:

A) social negotiation.
B) scaffolding.
C) a community of practice.
D) Piaget's idea of assimilation.

A) social negotiation.          

Explanation:

Social negotiation: In psychology, the term "social negotiation" is described as one of the subsets of the collaborative element and cultural negotiation, which is itself considered as a subset of the "information exchange" process. However, the type and amount of social negotiation are being involved in a "collaborative process" is dependent or connected on the characteristics of the "participants" and the "collaborative media".

In the question above, the mentioned students are involved in social negotiation.

the answer to your question is,

d. when a child was born.

-mabel < 3