A. Template
B. Commans
C. Mail Merge
D. Marcos
🧠 Explanation:
Mail Merge in MS Word enables sending the same letter to multiple recipients with personalized details. This feature is a key topic in software training, engaging users and professionals. Understanding Mail Merge enhances efficiency in communication, relevant for business and administrative tasks. Its automation attracts those mastering office tools, highlighting its role in creating customized letters or emails, emphasizing productivity in professional and organizational settings.