By the 1990s Traditional Oglala Spiritual Practices __________

By the 1990s traditional Oglala spiritual practices __________.

A) had been absorbed into the American Indian Movement's rituals
B) had been totally replaced by Christian rituals
C) had died out on the Pine Ridge Reservation, but were being kept alive in other places
D) were dying out because they are still outlawed by U.S. law
E) were undergoing renewal in a variety of ways