Question

Which of these techniques originated in the realist era?

Answer 1

Which of these techniques originated in the realist era?

the trend of using heroic characters the use of dialect in speech the trend of employing tragic themes the use of imaginary settings

Answer

Heroism and emotions came from the Romantic period, imaginary themes came from the impressionism period, and dialects have been around for a VERY (emphasis on "very") long time.  

And Realism was all about making things more realistic, so tragic themes would be your best answer