In what ways was realism in the mid-19th century response to changing social economic conditions (select 2)
a) realist writers sought to expose the groom lives of urban factory workers
b) the work of realist writers and artists highlighted the unsavory impact of industrialization on poor people
c) realist artist and writer celebrated the vast improvement in the living standard to be expanding middle class
d) the decline in economic opportunities for entrepreneurs and small factory owners was reflected in the stories of realist writers