Cultural differences in child-rearing can affect which of the following aspects?

The chosen response highlights that cultural differences in child-rearing significantly influence various developmental aspects such as behavior, feeding practices, sleeping arrangements, and toileting habits. Each culture has its own beliefs and values, which shape how children are fed, how they are taught to sleep, and how toilet training is approached.

For instance, certain cultures may emphasize co-sleeping, while others might advocate for independent sleeping arrangements. Similarly, feeding practices can vary widely, from the types of food offered to when and how children are encouraged to eat. In terms of behavior, cultural norms dictate acceptable and expected conduct, which can differ dramatically from one culture to another, thus impacting how parents respond to their children's behaviors.

While the other options may also be impacted by cultural factors, the particular nuances and direct methods of child-rearing, as addressed in the correct choice, clearly indicate how family practices in these areas can vary with cultural influences. Understanding these differences is crucial as they play a vital role in child development and the relational dynamics within families across diverse backgrounds.