--How many boats can you see in the picture?

--How many boats can you see in the picture?
--__________.
A.Not
B.No one
C.Nothing
D.None
请解释和说明这些词的用法

同意选D
理由：回答how many用none
回答who用no one
详细解析：
浅谈none的用法
1.none 与 no one / nobody 及 nothing
no one / nobody 常用来指人,作主语时谓语动词要用单数形式；nothing 常用来指物,作主语时谓语动词也要用单数形式；none 可指人也可指物,作主语时,如和 of 连用指不可数名词时,谓语动词要用单数形式；指可数名词时,谓语动词用单、复数均可.如：
No one likes a person with bad manners.
Nothing is difficult in the world if you put your heart into it.
None of them has / have seen me before.
None of this money belongs to me.
注意：
1 ） none 可与 of 连用表示范围,而 no one / nobody 及 nothing 不可.
2 ） none 可用来回答 How many / much…?的特殊疑问句；而 no one / nobody 及 nothing 则分别用来回答 Who…?和 What…?的特殊疑问句.如：
— How many birds are there in the tree?
— None.
— What is in the box?
— Nothing.
— Who is in the classroom?
— No one / Nobody.
3 ） none 可用来回答“ any + 名词”构成的一般疑问句：而 nobody 和 nothing 则分别用来回答由 anybody 和 anything 构成的一般疑问句.如：
— Is there any bread left?
— No,none at all.
— Is there anything in the sky?
— No,nothing.
4 ） none 可用来指代前面提到过的人或物；如无指代时可用 no one / nobody 及 nothing .如：
We had three cats once — none of them is alive now.
2.none 与 not all / all…not
not all / all…not 表示三者或三者以上的部分否定；而 none 表示三者或三者以上的全部否定.如：
Not all ads are good.并非所有的广告都好.
3.none but,nobody but 及 nothing but
nobody but 表示单一概念,谓语动词用单数形式；none but 可指人也可指物,通常指前面提到的同一事物,谓语动词要用复数形式； nothing but 泛指 but 后事物以外的任何事物.如：
Nobody but he is often late for school.除他以外,没有人上学常迟到.
None but fools have even believed it.除了傻瓜,没有人相信这一点.
There is a variety of fruit,but he chose nothing but an apple.
这儿有很多水果,但他只选了一个苹果.
4.其他用法
1 ） none 可指物质名词或抽象概念,构成短语 have none of ,意为“不允许；不接受；拒绝参加”,常和 will / would 连用,表示意愿.如：
I will have none of your stupid ideas!
2 ） none other than 意为“就是；恰恰是”.如：
The new arrival was none other than the President.