Answered

In 1908, the Supreme Court ruled in Muller v. Oregon that-
Northern Securities had a monopoly that should be broken up.
states could not decide the length of a workday.
states could regulate grain storage fees.
state laws could limit working hours for women.

Answer :

kleomalufet
In 1908, the Supreme Court ruled in Muller v. Oregon that

it would be D.
state laws could limit working hours for women.

The correct alternative is letter D) "State laws could limit working hours for women."

This is a very controversial decision, that would never pass nowadays. It basically cut off the negotiation powers of women, "encouraging" them to have more maternal and household based lives. It was a problem because it institutionalized gender-based discrimination.