Which Statement Accurately Describes the Walking Survey as a Data

Which statement accurately describes the walking survey as a data collection tool?

A) The walking survey determines how much exercise an expectant mother has been getting, to help her make health care decisions.
B) The walking survey usually takes place on the maternity ward but can be expanded to other areas of the hospital.
C) The walking survey is a method of observing the resources and health-related environment of the community.
D) The walking survey is performed by government census takers as part of their canvas.