How did the negative impact of European colonization outweigh the positive effects?

Question

a.The poor treatment of native cultures eclipsed the economic improvements brought by European colonization.

b.The inclusion of indigenous peoples into a new national government could not replace the native need for their own unique cultures.

c.The expansion of wealth for indigenous peoples was not substantial enough to justify the loss of their lands to colonizers.

d.European collaboration with native cultures was not enough to negate the removal of local natural resources.
a?

Answer 1

yes

Sooner or later "a" became the best answer.