Which impact of technology is emotionally negative in the story?

Correct answer: Margie's boredom and loneliness

The governing concept is the emotional cost of technologically isolated education. Machine teaching offers several practical benefits: it can check answers quickly, adjust lessons to a child’s level, and allow study at home. However, Margie does not enjoy the experience because she is alone with a mechanical teacher and has no classmates with whom to talk, learn, or share ordinary school life. Option C is therefore correct: boredom and loneliness are the emotionally negative effects shown in the story. The other choices are useful or convenient features of the system, although they may not compensate for the absence of human companionship and a shared classroom.