Answer:
Railroad companies challenged the new laws in the courts
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The fleet improvements that they made were <span>Ticonderoga-class cruisers and Los Angeles-class submarine
</span> Ticonderoga-class cruisers is a guided missile cruiser that has increased capability with aegis combat system and Los Angeles-class submarine is a type of attack submarine that is powered by nuclear.
The term that best completes the statement above is SERVICE WORKERS. The increase for the demand for service workers has created more employment opportunities for women during the years 1960s and 1970s. This is the era when women are now assigned in jobs related to providing services.
The answer to that is the Native Americans.
