To answer, you should:
1. Name your major: For example, "My major was Biology," or "I majored in Mechanical Engineering."
2. (Optional) Briefly explain what that entails: If the person isn't familiar with your major, you can add a short explanation. For example:
* "Biology – I focused on cell biology and genetics."
* "Mechanical Engineering – My coursework covered thermodynamics, fluid mechanics, and design."
* "History – I specialized in 20th-century European history."
The level of detail depends on your audience and the context. A casual conversation requires less detail than a job interview. If you had a double major or minor, you can also mention those.