What Is the Primary Reason That a Fieldworker Should Slow

What is the primary reason that a fieldworker should slow down and not proceed so quickly in the work?

A) At the beginning most fieldworkers do not know enough to ask productive questions. They must first learn about the community.
B) Fieldworkers should not work quickly because this is usually interpreted as being impatient and rude.
C) Small, local villagers are often very busy with their own lives and cannot work around the anthropologist's schedule.
D) Work that is completed quickly does not take into account the changes that occur over a long period of fieldwork.
E) Anthropologists must remain in the field for at least one year and should not hurry to finish the work sooner.