我是绿卡，LD的130刚批准，填485时有两个选项，应该选a还是b呢？
感觉应该是a，可是又被b里的spouse弄糊涂了。
[a] An immigrant petition giving me an immediately available immigrant visa number that has been approved
I-130/I-140 的受益人，－－即所谓主申请人
（I-130/I-140 已经批了，还没有批，与 I-485 同时提交，均同*）
[b] My spouse or parent applied for adjustment of status or was granted lawful permanent residence in an immigrant visa category that allows derivative status for spouses and children
I-130/I-140 的受益人的配偶或子女，－－副申请人