Which of the following was a cause of WWII? Group of answer choices

Unresolved conflict after WWI.

The Cold War.

Conflict between Christians and Muslims.

The assassination of Archduke Franz Ferdinand

The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations.

Explanation:

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.