Who Made Up the Grange, and What Effect Did They

Who made up the Grange, and what effect did they have on the writing of the Texas constitution?

A) They were a consortium of railroad entrepreneurs who wanted a constitution that would aid business interests.
B) They were a group of pro-Union Republicans who controlled the state after the Civil War.
C) They were an agricultural group who wanted a government that would improve the plight of farmers.
D) They were early wildcatters who wanted land grants from the state so they could explore for oil.
E) They were a group of pro-independence landowners who wanted Texas to secede from the Union.