D is citizenship for Mexicans who lived in Texas

i think its D because the whole war started when mexico considered Mexican territory since the government did not recognize the Velasco treaty signed by Mexican General Antonio López de Santa Anna when he was a prisoner of the Texian Army during the 1836 Texas Revolution.

Explanation:

answer; (religion)

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.