Which architectural achievement helped the Romans strengthen buildings? A. bas-relief
B. portraits
C. sculptures
D. arches

d) arches

Explanation:

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

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.