Final answer:
Bacteria, being prokaryotes, usually have a single circular chromosome located in the nucleoid region of the cell, not multiple chromosomes, making the statement false. Thus, the option B is the correct answer.
Step-by-step explanation:
The statement that bacteria usually contain multiple chromosomes is false. Bacteria, which are prokaryotes, typically have a single circular chromosome. This single chromosome is housed in the nucleoid, a central region within the cytoplasm. Unlike eukaryotic chromosomes, a bacterial chromosome is not organized around histone proteins. However, bacteria may also possess plasmids, which are small, circular DNA molecules that can carry additional genes, such as those conferring antibiotic resistance. While most bacteria have a single circular chromosome, there are exceptions, such as Borrelia burgdorferi, which has a linear chromosome.