En plein air refers to which practice?

• A. The practice of painting at night.
• B. A method of sculpture carving.
• C. The act of painting outdoors.
• D. A style of calligraphy.

Answer: (C)

En plein air is about painting outdoors to capture natural light and atmosphere directly. The term is French for “in the open air,” and it describes artists who work outside the studio rather than indoors. This approach became especially popular in the 19th century with movements like the Barbizon School and the Impressionists, who wanted to observe how light, weather, and environment change in real time. They used portable materials to paint on location, often finishing works quickly before light shifts.

So, it’s not about painting at night, sculpture carving, or calligraphy, but about the act of painting outdoors.