California becoming a state was controversial because A- Southerners were upset it was going to be a free state
B- Mexican officials still claimed that California was rightfully there territory
C- many Americans were prejudiced against the many ethnicities that inhabited California because of the Gold Rush
D- Northerners were angered over the fact that California allowed slavery

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

i do not know the question, but all of the above are correct; ///good luck;

answer; procedure;