What new innovation did the Confederacy use to threaten the Union blockade of Southern ports?

The blockade of the South during the Civil War, as well as Southern attempts to circumvent it, signaled a new era in naval warfare. Steam ships being used in war was new enough, but the Union and Confederate governments began building ironclad ships for use in battle.

i am pretty sure the awsers is d.

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts