Homeostasis is quoted as being "the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.", so in simpler words, it's the organisms ability to maintain a steady state. Meaning that your correct answer here would be B.
Answer - A Prokaryotic cells, being unicellular organisms, do not have a defined nucleus. They have a nucleoid in place of the nucleus which is formed of a single chromosome consisting of double stranded DNA.
