The pamir knot a) is a complex tangle of east-west and north-south trending mountain ranges on the borders of afghanistan, tajikistan, pakistan, and china. b) is the term for the border between mongolia and china. c) refers to the political isolation experienced by azerbaijan on the western side of the caspian sea. d) refers to the mountainous region lying on the border between nepal and china.

Option A

Explanation:

The Pamir Knot makes reference to the convergence of several mountain ranges. Some of the high peaks include Communism Peak (24,590 ft or 7,7495 m), Lenin Peak (23,403 ft or 7,133 m), and Peak Evgenia Korjenevskaya (23,311 ft or 7,105 m). Although the Pamir Mountains region is considered one of the least accessible areas in the world, it is also a very important geopolitical spot with highways such as Karakoram highway, linking Gilgit with Kashgar (considered the highest international highway in the world), the Wakhan Corridor between Tajikistan and Pakistan and the eastern “finger of Afghanistan This corridor was an annexation to Afghanistan by Great Britain in the late 18th century.

answer; i believe the best and correct answer is stronger bonds between the nations of africa;

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.