Which of the Following Statements Is Not True About Breastfeeding

Which of the following statements is not true about breastfeeding?

A) Breastfed children have higher IQs than bottle-fed children if they have a genetic predisposition to benefit from fatty acids.
B) Mothers lose their pregnancy weight faster when they breastfeed their children.
C) In the United States, women of lower socioeconomic status are more likely to breastfeed.
D) Breastfed children are not as likely to have iron deficiencies.