"employment authorization" refers to EAD, such OPT. If you didn't have EAD before, say "no". H-1 is not "employment authorization".
"Class of Admission" may have different explanations. Someone says it is the visa when you get in to this country, e.g., F-1 or H-1.
"Class of Admission" may have different explanations. Someone says it is the visa when you get in to this country, e.g., F-1 or H-1.