The kingdoms of West Africa traded gold for salt because A. they needed spices to make food more flavorful
B. there was little salt in West Africa, and people need salt to survive
C. there was an abundance of salt in West Africa
D. there was an abundance of gold in North Africa

yes, the correct answer is B

Explanation:

I also got it right on edg 2020

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although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.