Realist wanted to make people aware of the cost of industrial growth which action was hasted, largely because public opinion was aroused by contemporary novel

A verification of 19 amendment
B establishment of the interstate commerce commission
C approval of federal income tax
D an element of the meal inspection act

B establishment of the interstate commerce commission

The establishment of the interstate commerce commission was hastened largely because public opinion was aroused by contemporary novels, such as Upton Sinclair's "The Jungle," which brought attention to the poor working conditions and health hazards in the meatpacking industry. This led to a push for government regulation and oversight of industrial growth.