Why were other Mesoamerican tribes willing to help the Spanish conquer the Aztecs? a. they were being sacrificed by the Aztecs

b. they were tired of paying tribute to the Aztecs

c. they were promised a portion of the Aztecs gold

s. they were promised a portion of the Aztecs gold

please answer asap!!!

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons