Of the given options, sugar C₁₂ H₂₂ O₁₁ is the most soluble in water H₂ O, followed by common salt NaCl, camphor C₁₀ H₁₆ O, and sulphur S₈ in that order. Water H₂ O is called a universal solvent because it dissolves the majority of compounds present in the earth’s crust. Sugar C₁₂ H₂₂ O₁₁ is a polar molecule that readily dissolves in water due to the water molecule’s ability to form hydrogen bonds with the polar sugar molecule, making it highly soluble. Common salt NaCl is also a polar molecule, but its solubility is slightly lower than that of sugar C₁₂ H₂₂ O₁₁. Camphor C₁₀ H₁₆ O is a nonpolar molecule and has low solubility in water H₂ O. Sulphur S₈ is also a nonpolar molecule and is only slightly soluble in water H₂ O.

Therefore, the answer is c. Sugar.

Tissues are groups of cells that work together to perform specific functions in the body. Histology is the scientific study of tissues, including their structure, function, and composition. Histologists use microscopes and other tools to examine tissues at a microscopic level, which allows them to observe the cells and structures that make up the tissue.

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