Question

1. the brazilian government attempted to make contact with several tribes in ______.

a. 2014
b. 2009
c. the 1950s
d. the 1980s

Explanation:

To answer this, we recall historical context: The Brazilian government's attempts to contact uncontacted tribes in the 1980s (specifically, during that decade, there were initiatives). The 1950s, 2009, and 2014 don't align with the major efforts to contact tribes in the Amazon as prominently as the 1980s.

Answer:

d. the 1980s