Research on the effect of participating in online groups,such as support groups and health communities,suggests that overall,such groups

A) have little effect on participants
B) are only beneficial for people from disadvantaged groups
C) have positive effects on participants
D) are only effective if participants are official members of the group

The branchlike structures that receive messages from other neurons are called __________

A) axons.
B) nerve bundles.
C) dendrites.
D) synapses.