Question

the diagram below shows a cause and effect during the railroad expansion in the
railroad companies
offer rebates and
form pools to increase
their profits.
?
which effect completes the diagram?
a farmers demand government regulation of the railroads.
b industries pay high rates to ship large quantities of goods.
c small businesses benefit from the discriminatory practices.
d workers organize strikes against the railroads for higher wages.

Explanation:

Railroad companies' rebates and pools (monopolistic practices) hurt farmers/small businesses. Farmers would demand government regulation to address unfair rates. Option B is wrong (industries with rebates get low rates), C is wrong (small businesses are harmed), D is about wages (unrelated to rebate/pool effects). So A is correct.

Answer:

A. Farmers demand government regulation of the railroads.