In a sum of money case, service of summons was made on the defendant by delivering the summons to the defendant's office secretary at the defendant's office. The defendant did not answer within the period. Is there proper and valid service of summons on the defendant?

• A. Yes, because service on the defendant's secretary at the office suffices.
• B. No, because there was no personal service and substituted service requires earnest attempts to serve personally first.
• C. Yes, because service on the defendant's agent at the office is sufficient for in personam actions.
• D. No, because service by publication is required in money cases.

Answer: (B)