Answer:- Many Bolivians are farmers, but the agriculture sector does not produce much in terms of GDP.
Explanation:-
By the given two pie charts we can see the most important structural changes in the Bolivian economy involved the fact that most of the Bolivians Labor force belong to the agricultural sector by the year 2012 but the agricultural sector did not contribute much in GDP in year 2012.
Therefore, The first information is the right answer."Many Bolivians are farmers, but the agriculture sector does not produce much in terms of GDP."
Rest of the other information are not much important as the first one.