The linguistic form in originally used as a preposition or adverb has been used to form words like sit- in , teach- in , love- in , where -in means “demonstration, protest”. Which statement concerning this linguistic phenomenon is NOT correct?
A.
Two separate words can be joined to form a new word, with the original meaning of the component shifting.
B.
This is a right instance of using an existing word as an affix.
C.
Morphemes are not close-ended, that is, new morphemes are being continuously created.
D.
The status, function and meaning of “in” have changed in this process known as morphemization.