Final answer:
The technological advance that changed Fijian girls' opinions of their body shape was the introduction of television. This change in perception is reflective of the broader influence of technology on societal norms and self-image. Option b) is correct.
Step-by-step explanation:
A study of residents of Fiji found that the technological advance that changed Fijian girls' opinions of their own body shape was b) Television. The introduction of television impacted many aspects of life and culture, including ideals of beauty and body image.
As television diffused through Fiji, it brought along with it various images and narratives from around the world, influencing the ways Fijian girls saw themselves and altering their body shape perceptions. This shift in perception can be seen as a part of broader social changes spurred by the introduction of new technologies to societies.