What was the largest native American tribe in Texas and what was their biggest struggle?

i might not be much but i think its c

the answer in this question is b.(1) create a clear chain of command; (2) limit independence of lower-level workers.  the numbered pair of phrases that best completes the tables as it relates to the united states federal bureaucracy was (1) create a clear chain of command; (2) limit independence of lower-level workers.