单选题：有类Person定义如下：

有类Person定义如下：
```
public class Person {
String name = "Peter";
int age = 10 ;
}
```
以下操作的结果是：
```
Person p = new Person();
System.out.print(p.name+" "+p.age);
p.name = "Alice";
p.age = 12;
System.out.println(p.name+" "+p.age);
```



A.null 0 Alice 12
B.Peter 10 Alice 12
C.Peter 10 Peter 10
D.都不对


答案：B