—Have you got an iPhone 5?
—No, many young people began to say “No” to it because of _________ follow-up service. By the way, I am a supporter of Chinese products.

—Have you got an iPhone 5?
—No, many young people began to say “No” to it because of _________ follow-up service. By the way, I am a supporter of Chinese products.

1. A.
   it’s
2. B.
   its
3. C.
   it
4. D.
   itself