Which of the following changes occurred in Brazil in the 1990s and led to a need for an educated population? i. Brazil became a stable democracy.
ii. An increased amount of economic goods was produced.
iii. There was growing global economic participation.
iv. There was a greater need for educated workers.

Please choose from the answer choices provided:
A. i. and iv.
B. ii. and iii.
C. ii., iii., and iv.
D. i., ii., iii., and iv.