According to NAEYC Recommendations,how Often Should Toddler Meals and Snacks

According to NAEYC recommendations,how often should toddler meals and snacks be offered?

A) Meals and snacks should be at least 2 hours but not more than 3 hours apart.
B) Snacks should be served only when mealtimes are more than 4 hours apart.
C) Snacks should be served when toddlers do not finish food at regular mealtimes.
D) Meal- and snack times should be determined by the toddler's food requests.