What was the primary purpose of the mounds built by the mound builder cultures? A. Mounds builders used them to perform rituals and burials. B. Mounds builders used them to deposit artifacts. C. Mounds builders used them to hide gold and silver. D. Mounds builders used them to mark military victories.

Its A,

Explanation:

Got it wrong and it gave me the right one ッ

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question

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the colonists were also expected to pay a tax to meet the costs of establishing and manning the borders of the proclamation line which led to the belief that the king had sided with the indians despite pontiac's rebellion, against the interests of the settlers. this contributed to the causes of the american revolution.