Answer:
B) Plasmid
Step-by-step explanation:
Plasmids are the correct terms to call bacterial chromosomes by.
These plasmids are the chromosomal DNA which prokaryotes, like bacteria, have.
This is because they do not have nuclei, which eukaryotes do. This makes answer choices A and D wrong because they involve the nucleus.
Answer choice C is also wrong because it is not the term to call bacterial chromosomes, although plasmids do contain messages.
So, answer choice B is correct.