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

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)