Consider the following plants: 1. Groundnut 2. Horse-gram 3. Soybean How many of the above belong to the pea family?

All three plants—groundnut, horse-gram, and soybean—belong to the **Fabaceae (or Leguminosae) family**, commonly known as the pea family, as they all produce seeds in pods and possess nitrogen-fixing abilities. A common error (leading to option 'b') is excluding groundnut or soybean because they are primarily categorized as oilseeds in agriculture, yet botanically they share the same floral and fruit structures as pulses. The core concept being tested is the **botanical classification of major Indian crops** and the identification of members within the legume family.