Answer:
The correct answer is - the given information is not enough.
Explanation:
Prokaryotes are the organism that lacks a true nucleus and cell organelles such as mitochondria and chloroplast, There are some other characters too that differentiate them from the eukaryotes.
The prokaryotic organism can be distinguished in the two distinct domains archaea and bacteria on their different characters as the cell wall component and their nature.
Due to this, the found unicellular prokaryotic can not be placed in a particular domain however if further information could help in placing it in a domain.