A.地址：<select name=""id=""multiple><option value ="">广州</option><option value ="">深圳</option><option value ="">上海</option></select>
B.地址：<select name=""id=""><option value ="">广州</option><option value ="">深圳</option><option value ="">上海</option></select>
C.地址：<select><option1>广州</option1><option2>深圳</option2><option3>上海</option3></select>
D.地址：<select><option>广州</option><option>深圳</option><option>上海</option></select>