单项选择题A．An old lady carrying a handbag on the left.B．A mother with a baby in her arms.C．A woman whose bag is hanging in front.D．A lone female with a handbag at her right side.

单项选择题A．They should help maintain the equipment.B．They should teach their children how to use the equipment.C．They should stop their children from climbing ladders.D．They should keep a watchful eye on their children.