B is the correct answer. B is correct because first off it list the main uses of decorative pots from each culture like <span>storage within a tomb( most notably the Egyptians), for holding relics within a church( very common with the Byzantines), or for serving food during a tea ceremony( Japanese)</span>

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.
Answer:
none of the above I think