【C017100】现有两个实体类User.java和Address.java，代码片段如下：

public class User {

 private Integer id;

 private String userName;

 private String userCode;

 private String userPassword;

 private List<Address> addressList;

….

}

public class Address {

 private Integer id;

 private Integer postCode;

 private String addressContent;

….

}

现在需要做一个连表查询（address表中有一个userId的字段，关联user表的主键id），根据用户id来获取该用户的地址列表，部分代码如下，请补全空白处的代码（ ）。

<resultMap type="User" id="userMap">

 <id property="id" column="userId"/>

 <collection property="__(1)__" ofType="__(2)__">

  <id property="id" column="__(3)__"/>

  <result property="postCode" column="postCode"/>

  <result property="addressContent" column="addressContent"/>

</collection>

</resultMap>

<select id="getAddressListByUserId" parameterType="User" resultMap="userMap">

select *,a.id as a_id from user u,address a where u.id=a.userId and u.id=#{id}

</select>

• A.Address
  
  addressList
  
  a_id

• B.addressList
  
  Address 
  
  a_id

• C.addressList
  
  List
  
  a_id

• D.addressList
  
  Address 
  
  id