Which of these statements about ethnic boundary markers is FALSE? Question 46 ? options:…

Which of these statements about ethnic boundary markers is FALSE?
Question 46 ?options:
1) ?
Language is frequently an ethnic boundary marker.
2) ?
Ethnic boundary markers are overt indicators of group membership.
3) ?
Cultural traits are ethnic markers; physical or biological differences are not.
4) ?
A single boundary marker is not sufficient for identifying group membership.