A law that allows mine owners to hire children to work in tight spaces best illustrates the purpose of labor laws.
C. a law that establishes health and safety conditions in private companies
Explanation:
The sole purpose of Labour Laws is to provide good and healthy environment for the labours working in mines and factories and protecting and supporting their rights, mental well being and their safety.
The Law also helps them treated equally in the work space and are being provided equal wages and proper wages for the they do in the factories and mines. In mines the workers cannot be forced to work in dangerous situations and will be paid well for their labour.