Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country’s decision to sell land to another country

A. A shift in the way a river flows.

The answer is a because no matter how a river flows it cant divide a country.

A.

a shift in the way a river flows

Explanation:

Drastic boundary changes can occur for all of the following reasons except fora shift in the way a river flows

fh gyu jfh fluffy y gyu gyu gyu gyu fyuf hug uhfyu fungus f jy hug fy iffy ya guy fyuf usf us gyu gyu uyfuy fyu gyu fyu fyuf you fyu fyu uyf fyu fyu jy uyf uyf guys y fyuyg giygy iuf giu fyi iuf ya ffui fui hive guy gyu giu iuf ya giu jyu

a is the answer i believe.