Which of the following is NOT used by the author to stop the childs crying at night？A．Leav

Which of the following is NOT used by the author to stop the childs crying at night？

A．Leaving the baby crying alone in a room unattended.

B．Letting the baby listen to the radio for the nursery.

C．Feeding the baby with some warm milk and beverage.

D．Allowing the child to sleep without noise.

请帮忙给出正确答案和分析，谢谢！