What is PALM in PALM-COEIN AUB classification? 
 
A) PALM is special circumstances - Polyp Adenomyosis Leiomyoma Malignancy 
B) PALM is structural abnormality - Polyp Adenomyosis Leiomyoma Malignancy 
C) PALM is structural abnormality - Polyp Acanthosis Leiomyoma Malignancy 
D) PALM is structural abnormality - Petichiae Adenocarcinoma Leiomyoma Miscellaneous