Noun Clauses (İsim Cümlecikleri) Test 1

'What he said' ifadesi aşağıdaki cümlelerin hangisinde isim cümleciği olarak kullanılmıştır?

A) What he said was very interesting.
B) He said what he wanted.
C) I don't know what he said.
D) What he said is not important.