Why Is Scarification Used Instead of Tattooing Among Some Groups

Why is scarification used instead of tattooing among some groups?

A) Scarification is used when dark skin would prevent tattooing from being seen.
B) In some areas, no natural substance is available for ink, so scarification is substituted.
C) Within cultures that use scarification, there is a religious prohibition against coloring one's skin.
D) There is no consistent pattern or reason for which some groups use scarification instead of tattooing.