Why did Texans object to being merged with Coahuila?

ANSWER: In the case of Tejas its territory was organized for administrative purposes, with the state being divided into three districts: Béxar, comprising the area covered by Texas; Monclova, comprising northern Coahuila; and Río Grande Saltillo, comprising southern Coahuila.

The state remained in existence until the adoption of the 1835 "Constitutional Bases", whereby the federal republic was converted into a unitary one, and the nation's states (estados) were turned into departments (departamentos). The State of Coahuila and Texas was split in two and became the Department of Coahuila and the Department of Texas.basically that explains it I belive

1. the spread of reform movements aimed at perfecting american society

The answer b is correct on edgenuity