Answer :
"Chiapas" is the one state among the choices given in the question that contributes to almost 1/3 of Mexico's freshwater resources. The correct option among all the options that are given in the question is the first option or option "a". I hope that the answer has actually come to your great help.
The correct answer is A, as Chiapas is the state that contributes to almost 1/3 of Mexico's freshwater resources.
Chiapas is a state rich in natural and cultural resources, it is a territory of cloud forests, a habitat recognized by UNESCO for its high biodiversity and extensive contribution of environmental services. Rivers, lakes and springs converge throughout the state.
The numerary related to water in Chiapas is striking: it has 81 hydrographic basins; contributes 30% of the country's fresh water; it has the highest availability of surface water with 92 thousand cubic hectometres and a huge reserve of groundwater, with two thousand cubic hectometres.