Which Rule 12(b) is insufficiency of service of process?

• A. Rule 12(b)(5) Insufficiency of Service of Process
• B. Rule 12(b)(4) Insufficiency of Process
• C. Rule 12(b)(3) Improper Venue or Division
• D. Rule 12(b)(2) Lack of Jurisdiction Over the Person

Answer: (C)

This item tests which Rule 12(b) defense covers failure to properly serve the defendant with process. Insufficiency of service of process means the defendant wasn’t served in a manner authorized by law, so the case can be dismissed unless service is corrected. In standard practice, this defense is raised under Rule 12(b)(5). The other Rule 12(b) defenses refer to different issues: insufficiency of process concerns defects in the process document itself, improper venue or division concerns where the case is filed, and lack of jurisdiction over the person concerns the court’s authority to bind the defendant. So the correct understanding is that insufficiency of service of process falls under Rule 12(b)(5), not the others.