Correct Answer: (c) All three
Solution:The Fabaceae, also known as the Leguminosae, is a significant family of flowering plants commonly referred to as legumes, peas, or beans. Groundnuts, which are legumes, are part of this family and are unique in that they develop underground. Horsegram, another member of the Fabaceae family, is a promising grain legume known for its high nutritional value, medicinal properties, and ability to thrive in challenging environmental conditions. Soybeans, classified as dicotyledonous flowering plants (eudicots), also belong to the Fabaceae family. Thus all three belong to the pea family.