Self-directed teams:. a. usually exist as communities of practice.
b. are informal groups that exist in an organization.
c. have reduced member interdependence compared to other teams.
d. have substantial autonomy over the execution of a complete task.
e. consist of a group of employees who are subject to methodical supervision.

Nextdoor is an instant messaging application for smartphones. new smartphone users find it easier to connect with friends and relatives through this mobile app when compared to other similar instant messaging applications. hence, it has the largest user base in the industry. thus, nextdoor app's value has increased primarily due to itsa. learning curve effects. b. economies of scale. c. economies of scope. d. network effects.