As an economic institution, nonprofit organizations include: a. business associations b. trade associations c. corporations d. professional organizations

D. Professional organizations

Explanation:

As an economic institution, nonprofit organizations include D. professional organizations. The main purpose of these organizations is to make their profession better or more valuable for the people practicing the profession as well as for the benefit of the general public. Since it works for the benefit of the general public it is included in non profit organization.

answer; empathy;

answer; can each be concretely realized in different ways;