Epigraphy refers to the study of inscriptions. Inscriptions can be found on various surfaces such as stone, metal, or even walls, and they often provide valuable historical, cultural, and linguistic information. By analyzing inscriptions, epigraphists can decipher ancient languages, interpret historical events, establish chronologies, and gain insights into the beliefs and practices of past societies.

Option 1, the study of coins, is not accurate as that field is known as numismatics. Numismatics focuses on the study of coins, their production, and their role in societies.

Option 3, the study of epics, is not correct. The study of epics falls under the field of literature or literary studies, focusing on epic poems or stories such as the Iliad or the Mahabharata.

Option 4, the study of geography, is also incorrect. Geography deals with the study of the Earth`s physical features, climate, populations, and other spatial phenomena.