What are the key requirements for valid service of process and what defects render service invalid?

• A. Service must be timely and published in a newspaper.
• B. Notice must be given by certified mail even if not authorized.
• C. Service is valid if the defendant is aware, regardless of notice.
• D. Proper notice and method authorized by rules; defects include failure to notify, improper service on the wrong person/party, or service outside authorized methods.

Answer: (D)