The rise in negative attitudes toward foreigners indicate ... ...

   The rise in negative attitudes toward foreigners indicate that the country is becoming less tolerant, and therefore that the opportunities are ripe for extremist groups to exploit the illegal immigration problem.
(A)    indicate that the country is becoming less tolerant, and therefore that
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Writing Drills: Warm-Up Drill II