Which factor contributed to more settlers arriving in West Texas? A. expansion of renegade communities
B. expansion of the highway system
C. expansion of the reservation system
D. expansion of the railroad

D. Expansion of railroad

Explanation:

American settlers moved to Texas because the Mexican government offered large tracts of free land to the settlers. In return the settlers had to obey the Mexican law.

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.

you really can't answer this on your own?