The role of the International Boundary and Water Commission administered by the U. S. and Mexican governments is to build and monitor a wall between the two countries. restore the original border agreement intent by physically altering the flow of the Rio Grande. renegotiate borders after changes in the course of the Rio Grande. replace physical boundaries with geometric boundaries to simplify immigration processes. ensure pollution controls and water sustainability.

Renegotiate borders after the Rio Grande changes course

Explanation:

International Boundary Commission

This is simply known as an international body set up by the United States and Mexico. It was founded in 1889. It main focus is to apply the rules for determining the location of their international boundary when meandering rivers transferred tracts of land from one bank to the other, as said to be established under the Convention of November 12, 1884. Boundary is commonly referred as a containers of Sovereignity.

The Rio Grande is said to be a floating boundary as the river course goes is the shift is by something called ecritian.

1889 Boundary Convention was set up the boundary commission to deal with all disputes arising from the river.

well i'm late but i think its: b, c, and e

answer; reliable;