1. (A)
2. if your 140 approval,could not file 485
then (D)前一雇主PERM LC 失效,从PERM LC开始重新申请,
but (E) 前一雇主PERM的优先日期 Valid,ONLY IF 前一雇主 doesn't revoke 140,and PERM. otherwise, you will lose your priority date.
immigration-law has Q and A about it