Governments of brazil, cuba, & mexico

brazil cuba mexico
type of government federal republic communist state federal republic
chief executive president
(4-year term,
2 term limit) president
(6-year term,
unlimited terms) president
(6-year term,
1 term limit)
distribution of power federal unitary federal
voting rights mandatory voting
for ages 18-70 must be 16
years old to vote must be 18
years old to vote
political parties many one
(cuban communist party) many

what can be concluded from this chart?
a) there are no democracies in latin america.
b) mexican citizens have the least amount of freedom.
c) cuba and mexico have very similar government structures.
d) brazil and mexico have very similar government structures.