A father and his young daughter get on a bus and sit down. The conductor（售票员）comes to them for their money. The father says, "I want one ticket.”Then he gives the conductor some money. The conductor looks at the girl, then he asks, "How old are you?" The father starts to speak. But the conductor stops him, and the girl says, "I am six years old at home, and four years old in buses and trains. Father tells me that.’’ The father's face turns red. He has to take some money out of his bag and gives it to the conductor. The conductor gives him one and a half (半) tickets.

欲在实验室配制100g 16%的氯化钠溶液进行选种，判断下列做法是否正确，将错误改正．

A．计算：需要16g氯化钠，100g水____ ；

B．称量：用托盘天平称量所需的氯化钠____；

C．量取：用50mL量筒量取所需的水____ ；

D．溶解：将称得的氯化钠倒入量筒溶解____ ．

下列说法正确的是（   ）