Final answer:
The benefits of breastfeeding and preventing crib death are effective persuasive speech topics for pregnant women and new mothers.
Explanation:
The correct answer is B. The benefits of breastfeeding over formula feeding and how to prevent crib death are both examples of effective persuasive speech topics for a group of pregnant women and new mothers. These topics are directly relevant to their current situations and can provide valuable information and guidance. Child rearing techniques in the 21st century may not be as specific and impactful for this particular audience compared to the benefits of breastfeeding and crib death prevention.
Learn more about Persuasive speech topics for pregnant women and new mothers here:
https://brainly.com/question/30387839
