There is no correct answer among those listed. Bacteria belong to the bacterial kingdom. That is, they are taken out to a separate kingdom due to the peculiarities of the structure of the body, the presence of a nucleus, a shell, a small size, a way of life, and so on. In addition to them, there are four other kingdoms of living nature. But the “special” kingdom does not exist in principle. Some biologists and scientists distinguish not five kingdoms of living nature, but eight, according to a number of features of the structure of the body and the location of genetic material in cells. But this classification is not always applied.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.