针对生育率长期走低、人口老龄化日趋严重的现实，2015年12月17日，十二届全国人大常委会第18次会议表决通过关于修改人口与计划生育法的决定，修改后的计生法明确国家提倡一对夫妻生育两个子女。新法于2016年1月1日施行。新法的修改体现的认识社会和价值选择的道理是（    ）

①生产关系一定要适应生产力的要求     ②社会意识随着社会存在的变化而变化

③社会意识具有相对独立性            ④价值判断和价值选择要遵循社会发展规律

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     It was a sunny day last Sunday.  Liu Mei went shopping with her mother.  On her way to the shop, they met (遇见) an old woman.  The old woman wanted to see her husband (丈夫).  He had a flu and was ill in hospital.  But she did not know the way to the hospital. Liu Mei asked a policeman.  He told (告诉) her to take the No. 11 bus.  Liu Mei went with the old woman to the hospital and her mother went shopping by herself. Forty minutes later, the old woman saw her husband.  Liu Mei left the hospital and went to the bookstore. She did not wait for their thanks.