What did monroe say to the u. s congress in a speech that later became known as the monroe doctrine

You did not provide any options but the general answer to this question would be ‘The American continents … are henceforth not to be considered as subjects for future colonization by any European powers.’

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d. it spread christianity. i just took the test and got it right.

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.