In answer to your question: What is (i) and (ii)?

(i) Denieal of participation
It shall be discriminatory to subject an individual or class of individuals on the basis of a disability or disabilities of such indivdiual or class, directly, or through contractual, licensing, or other arrangements, to a denial of the opportunity of the individual or class to participate in or benefit from the goods, services, facilities, privileges, advantages, or accommodations of an entity.

(ii) Separate benefit
It shall be discriminatory to provide an individual or class of individuals, on the basis of a disability or disabilities of such indivdiual or class, directly, or through contractual, licensing, or other arrangements with a good, service, facility, privilege, advantage, or accommodation that is different or separate from that provided to other individuals, unless such action is necessary to provide the individual or class of individuals with a good, service, facility, privilege, advantage, or accommodation, or other aopportunity that is as effective as that provided to others.