A nurse is providing a client with discharge instructions about the effects of lactation on ovulation. The client plans to do combined feeding of formula and breast milk. Which of the following statements indicates that the client understands the instructions?

"I plan to switch to mostly formula feeding, but still breastfeed at night, so this should be enough to stop my period for a few months.”.

"I won't get pregnant in the next six months because I am breastfeeding enough that I won't ovulate.”.

"I understand that I may ovulate in the next few weeks or months because I'm giving formula to my infant and not breastfeeding or pumping all or most of the time.”.

"I heard from my friend that exclusively breastfeeding rarely delays ovulation and you can get pregnant easily.”.