Which Statement Indicates the Mother of an 8-Month-Old Understands Infant

Which statement indicates the mother of an 8-month-old understands infant sleep patterns?

A) "I put the baby in my bed until she falls asleep, then I put her in her crib."
B) "I let the baby skip an afternoon nap so that she will fall asleep earlier."
C) "I put the pacifier in the crib so that she can find it when she wakes up."
D) "I rock the baby back to sleep if she wakes up at night."