PLS HELP FAST!! Mariano Vallejo
a.
spoke out in favor of more fair treatment of Mexican Americans and Native Americans.
b.
acted as an advisor to President Polk during the Mexican War.
c.
negotiated the Gadsden Purchase.
d.
urged Mexican settlers in the US to take the law into their own hands.

Explanation:

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answer; ///i believe that the correct answer is (b)arches and domes; ///

mosques-hypostyle halls with lots of space.towers called minarets flanks the luck

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.