Problem: Which of the following are examples of social marketing campaigns? a. The Texas Department of State Health Services campaign to promote its Mother-Friendly Worksite Program, educating Texas employers about mother-friendly policies in the workplace. b. The Champions for Moms campaign to share information from high-profile mothers about how they overcame obstacles to childbirth and breastfeeding to encourage and support pregnant and breastfeeding mothers. c. The USDA's Fathers Supporting Breastfeeding program using video, poster, and brochures to reach African American fathers so that they may positively influence a woman's decision to breastfeed. d. All of the above.