What caused the main differences between developments in west africa and those in western europe during the 14th and 15th centuries?

Western and europeans in general fought each other a lot resulting in superior fighting tactics. Other places did not do this, giving europe a huge edge against everybody.

The three main pillars of life, those being the Feudal system, the Manor system, And the Roman Catholic Church.

Explanation:

I Finished the review sheet and got it right.

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the correct answer is ''the programs costs have risen dramatically in the recent past'' hope this !