The correct answer is D) Courthouse affairs being conducted.
The last thing that you likely see in market days is "Courthouse affairs being conducted."
When it's market day, what you want to see is people selling their goods, showing their crafts, local clothes, and other local attractions that make your day fun and worth spending it in the market. You buy healthy things, help local people, and indeed, you have a good time. The last thing you want is courthouse affairs being conducted, having lawyers or politicians delivering speeches in the main square.
The other options of the question were A) farmers from the countryside selling their crops. B) local housewives selling homemade goods. C) Attire from European homelands.