Both the Grangers and the Farmers' Alliance found it difficult to:

A. Stand together on national issues.

B. Operate cotton gins.

C. Work together on community issues.

D. Build grain mills.

Both the Grangers and the Farmers' Alliance found it difficult to Stand together on national issues.

Option A

Explanation:

Farmer's alliance was an American agricultural movement of 1870s which sought to improve the farmer's economic conditions. Farmer's also formed an organisation, the northern alliance called the Granger movement.

Both the farmer's alliance and the Granger found it so tough to stand together on national issues. The Granger were known as the patrons of husbandry. This organisation was formed in 1867 to support better methods of agriculture. The main aim of both of them was to improve the working conditions and lives of the farmers. They both have very clear motives.