Correct Answer: Numismatics

Solution : The correct answer is the third option.

The term numismatics refers to the study or collection of coins, including their history, design, production, and significance. It encompasses a broad range of aspects related to coins, such as their origin, circulation, and the cultural and historical context in which they were used.

The meanings of the other options are as follows:

• Philately is the collection and study of postage stamps.
• An antiquary is a person who studies or collects antiques, including old coins.
• An apothecary was a person who prepared and sold medicines.

Therefore, the correct answer is numismatics.