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The secondary source would match with can be proven, then where is says credible would match with believeable or trustworthy, Then corboratted would match with is created with someone not involved,

Then verifiable would match with is direct evidence, and lastly primary source would match with is supported evidence

Explanation:

I took this before you'll do well Thanks for letting me help ya'know! ; ) c'ya!

because mexico wanted to choose a centralized location

to extend a country’s power and influence