The suffix -ology expresses which concept?

• A. Science of
• B. Field of
• C. Study of
• D. Practice of

Answer: (A)

The suffix -ology names a discipline that studies and organizes knowledge about a subject. It signals a systematic body of knowledge and methods—the science of that topic. That’s why “science of” fits best: it captures both the study and the organized, methodical approach behind the field. “Field of” can imply a geographic or thematic area without the sense of a structured science, and “practice of” refers more to doing or applying, not the knowledge system. While “study of” is related, -ology most directly denotes the discipline itself—the science behind the subject.