Which statement is not correct for L2 learners ?
选项：

A:
A:They learn the language often by talking about life outside the classroom.
B:
B:They learn the second language often by needing to produce language soon after it has been taught.
C:
C:They learn the second language often by using language in free practice activities and being corrected.
D:
D:They learn the second language sometimes by playing and experimenting with new language.