[简答]  二、阅读理解：阅读下面的短文，根据文章内容从A、B、C、D四个选项中选出一个最佳选项。Moreandmorepeople(1)toinstallburglaralarmsintheirhousesiftheywanttogetinsurance.Insurancecompanieshavebeenasking peopleincertainareastoinstallthealarmsbeforetheygivetheminsuranceforthepastyear.Thisis(2)totheincreasingcrimeinsomepartsofthecountry.Thiscanbeaproblemforpeople(3)arestrugglingtomakebothends(4).Thealarms,whichcanbeveryexpensive,needtobeinstalledbyanelectrician.Itisestimated that20%ofhomeshavealarmsinstalled,andthatanother20%ofpeopleplan(5)buthavenotinstalledthemyet.