They used electronic surveillance meaning they were able to listen to phone calls, reading emails and text messages etc.
This should help i dont know what your question is per say
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Your answer is going to be C. This is because it is the only relevant answer there is.
I hope this helps!!!!!!!!!!!!!!!!! Please mark me as Brainiest
Many Native American tribes fought for land but usually lost, when other tribes accepted the Ordinance and sadly died.