Recent Action Research by a Teacher in Alberta (Nero, 2008)

Recent Action research by a teacher in Alberta (Nero, 2008) used email to connect Canadian 2^nd graders to classes in South Africa and Autstralia in the common quest to update information on "People in the world." Why might this be an example of a community of learners?

A) because students co-operated to enhance each other's learning.
B) because students developed friendships.
C) because students learned to use a new tool for communication.
D) because on-line communities are already "communities of learners".