The answer would the Columbian Exchange.
The answer is A. Imagine the 3 in 13 as a handcuff and the 1 as the key unlocking it
Answer:
(1) Guadalupe Hidalgo
(2) Texas, California, Utah, Nevada, New Mexico, Colorado
(3) Rio Grande river
Explanation:
The answer should be Macedonia
-Tejano: A texan of Latin American, often Mexican, descent.
-Annex: To add a territory to one's own territory.
-Decree: Official order.
-Barricade: To black off.