用 sprint tax报税的一个问题

碰到这一栏
Did you claim state tax expenses on your 2016 tax return , line 11, page 1?


请问这个是   州税退税表   还是   国税退税表   里面的？

顺便再问一问， Did you have any overpayment listed on your 2016 state tax return?       这到底是个啥？   一直在加州，没换过地儿
Months claimed in prior tax years 是填12吗？ 去年加州报过一次税。。。