What is the nomenclature for benign and malignant tumors?

Tumors that have their origin in the epithelium of lining and emit digitiform or verrucous projections are known as papillomas.
Benign tumors of the ovary and other locations that form glandular structures and cystic spaces are called cystadenomas, which in turn can be papillary.
Malignant tumors of mesenchymal origin are added the suffix -sarcoma.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I, II and III are correct.