DS2019表填写请教

[feng_a_b]

填写DS2019表时，有这样一项：

Have you applied for (Yes__ No__ ) or received (Yes__ No__ ) a waiver
of the 2-year home residency requirement?

不知道括号里面的两项如何选择？还有，这个waiver of the 2-year home residency requirement是啥意
思？另外，表中还提到健康保险的事情（Adequate Health Insurance），这个是在出国前办，还是出国后在办？谢谢。