I am not really sure are there multiple choice questions if so I need to see them.
Answer:
Chromosomes will be seen in the nucleus of dividing cells (during mitotic and meiotic cell divisions) because they are visible when a cell is dividing as oppose to non dividing cells. Also, all processes of cell division from prophase, metaphase, anaphase to telophase will be seen :)
Eubacteria are considered prokaryotic
all prokaryotic cells are unicellular, has a cell wall and lack both a nucleus and membrane-bound organelles
