Electronic pets are sweeping China's large cities as they have elsewhere in Asia, as increasing numbers of young people go crazy about the imitation chickens, dogs and dinosaurs(恐龙).
The electronic pets, about the size of a watch, have the same qualifies as living animals. They eat, sleep and they can feel happy, angry and sad. When they are hungry, they call their owners to feed them. If the owners do not respond quickly, they get angry and refuse to eat. If the owners continuously neglect them, they refuse to eat and play with their owners until they die.
These chickens, dogs and dinosaurs are happy when their owners stop working to play games with them or feed them snacks. However, if they are fed too many snacks, they will get fat and sick.
By raising an electronic dog, animal lovers can be somewhat satisfied. However, as with real pets, not everyone loves these electronic animals.
Invented in Japan, electronic pets are gaining great popularity in Asian countries.
This passage is mainly about ______.

A. the qualities of electronic animals
B. the intelligence of electronic animals
C. the value of electronic animals to its owners
D. the popularity of electronic animals in Asia