The practice of using the radio to reach americans directly originated in what century? 20th century 21st century 19th century 18th century

Century 19th. The first radio news program was broadcast August 31, 1920

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.