Which of the Following Statements Is True About Accession

Which of the following statements is true about accession?

A) Accession is the intermixing of goods belonging to different owners in such a way that the goods cannot later be separated.
B) Even if work is done on personal property without the consent of the owner,he has to reimburse for the improvements.
C) Usually the person who improved the property in good faith is entitled to recover the cost of the improvement made to it.
D) Under accession,the owner of the original property generally doesn't become the owner of the improvements.