Answer: A. military law
Step-by-step explanation:
Military law deals with maintaining order and discipline within the ranks, beyond the breaking of established rules as in criminal law, because it regulates military conduct, duties, responsibilities and rights, which are different from civil and criminal ones.
Constitutional law regulates what the state can and cannot do in relation with individuals and their rights and the general state order, civil law relates to matters of everyday life of every citizen, whereas juvenile law applies to children (minors), their rights and duties.