Your husband has OPT. This is not the same as having an EAD, so any answers about having "previously had an EAD" should be answered "NO". The answers are:
"Family based immigration"
"Permission to accept Employment"
Also I don't understand why your husband leaving his job makes "EAD" irrelevant. Right now if he wants to work after his OPT expires, he needs an EAD. An EAD is not tied to a particular job, it would allow him to work for anyone.
"Family based immigration"
"Permission to accept Employment"
Also I don't understand why your husband leaving his job makes "EAD" irrelevant. Right now if he wants to work after his OPT expires, he needs an EAD. An EAD is not tied to a particular job, it would allow him to work for anyone.