21. Analyze why Dr. Drake wrote that Dr. Tarter was “brave to get involved in SETI projects as a young scientist in the mid-1970s.​

Awriter uses exposition to describe the setting of the story, an empty mansion that is dark and foreboding. then he introduces the reader to the two main characters, a couple who are young and naïve. what emotion is the author most likely trying to create in the reader through this exposition?