Why did the Silver Foxes bred for domestication develop unintended characteristics like floppy ears and white patchy fur?

Question $18$ options:

a$)$

By not being selected against $($as they would have been in nature$),$ these traits began to emerge more and more with each generation

b$)$

The foxes learned they would receive more attention from the humans if the looked $$cute$$

c$)$

By not being selected against $($as they would have been in nature$),$ these traits began to emerge more and more with each generation$$ AND$$ Temperament, behavior, and appearance are all genetically linked $-$ selecting for genes that promote a friendly temperament caused the genes controlling floppy ears and curly tails to also become more strongly expressed

d$)$

These traits were specifically selected for by the breeders

e$)$

Temperament, behavior, and appearance are all genetically linked $-$ selecting for genes that promote a friendly temperament caused the genes controlling floppy ears and curly tails to also become more strongly expressed