Congress passed the nursing mothers law in 2010, a law that requires employers to give nursing mothers break time and private space for pumping breast milk for their babies. on january 3, 2011, the department of labor published proposed rules in the federal register. if the department of labor decides to change the content and approach of the proposed rules based on feedback, which of the following is correct? a. the department must return to congress to get approval for the proposed changes to the original rules. b. the department must allow 90 days for comments on the proposed changes to the original rules. c. the department must publicize the proposed changes in the original rules and allow a comment period. d. because the rules could not be promulgated, congress can revoke the nursing mothers law.