What are the etiologies of abnormal uterine bleeding?

I- Polyps
II- Adenomyosis
III- Leiomyoma
IV- Malignant lesions or simple or complex/atypical endometrial hyperplasia
V- Coagulopathies
VI- Ovarian dysfunction
VII- Endometrium
VIII- Iatrogenic
IX- Chronic endometritis
X- Arteriovenous malformations
XI- Myometrial hypertrophy
a) I, II, III, IV and V are correct.
b) VI, VII, VIII, IX, X and XI are correct.
c) All statements are correct.
d) None of the statements are correct.