(a) The complaint must be served on you as an individual directly, on a partnership through a general partner, and on corporations or on unincorporated associations through an executive officer or a director. Service may also be made on any person authorized by appointment or by law to receive process for you or a legal entity.

(b) The complaint may be served either by:

(c) The date of service is the date of personal delivery or, in the case of service by registered or certified mail, the date of postmark.