Answer:
Printmaking
to kind of explain further there are none (9) types of printmaking
Folk music is traditional music that is written in its style, popular music is not traditional music.
The answer is indubitably C. Why is there a character minimum?

TOPIC:- PASSIVE VOICE
QUESTION:- He was painting a portrait.
ANSWER:- A portrait was being painted by him
RULES FOR FORMATION:-
1. Change the object into subject.
2. use 3rd form of verb .
3. use by and then use subect as object.
HOPE IT HELPES YOU.
If you are talking about music is rythem if you are talking about something else its beat