（2016高考训练）阅读下列材料，从每题所给的选项中选出最佳选项。
As for old people，some of the applications are hard to use because they didn't grow up with them.They don't have simple models of how they should work，what to do when something doesn't work or where to go for help.We make it as easy as possible to be used for people who are not familiar with the technology.
