Kyle Was Born Deaf to Hearing Parents

Kyle was born deaf to hearing parents. Neither of his parents learned sign language. He developed a few "home signs", but actually learned sign language in his educational setting. Given this information, what can be expected of Kyle's language development?

A) He will learn sign language very easily in his educational setting
B) He will perform less well in sign language measures than if he had learned sign language earlier
C) Since language development is innate, he will have developed his own sign language
D) None of the alternatives are correct