【C017146】在MyBatis应用中，DO对象为：

public class User {

    private Integer userId;

 private String userName;

 private String userPasswd;

    (get、set略)

}

Mapper文件中有如下配置：

<select id="selectUsers" parameterType="int" resultMap=" userResultMap ">

  select id as “id”,

user_nm as “username”,

user_pd as “password”

  from users

  where id = #{id}

</select>

假如我们要配置resultMap，以下选项正确的是（）。

• A.<resultMap id="userResultMap" type="User">
  
    <id property="id" column="userId" />
  
    <result property="username" column="userName"/>
  
    <result property="password" column=" userPasswd"/>
  
  </resultMap>

• B.<resultMap id=" User" type=" userResultMap">
  
    <id property="id" column=" userId" />
  
    <result property="username" column=" userName"/>
  
    <result property="password" column=" userPasswd"/>
  
  </resultMap>

• C.<resultMap id="userResultMap" type="User">
  
    <id column="id" property=" userId" />
  
    <result column="username" property=" userName"/>
  
    <result column="password" property=" userPasswd"/>
  
  </resultMap>

• D.<resultMap id=" User" type=" userResultMap">
  
    <id column="id" property=" userId" />
  
    <result column="username" property=" userName"/>
  
    <result column="password" property=" userPasswd"/>
  
  </resultMap>