Solution:Storage of agricultural produce is a service activity and belongs to the tertiary sector, not the secondary sector, which processes raw materials. Dairy farming correctly falls under the primary sector, as it involves the production of raw materials (milk).Mineral exploration is part of the primary sector, not the tertiary sector, as it involves finding mineral deposits. Weaving cloth is correctly categorized in the secondary sector, which deals with processing raw materials into finished goods, such as converting cotton or wool into fabric.
Hence the correct answer is (b).