Water is a chemical compound consisting of one atom of oxygen (O) bonded chemically to two atoms of hydrogen (H). It is a unique substance due to its properties. Water is a polar molecule i.e. has both positively and negatively charged ends, hence, making one of its properties of being a UNIVERSAL SOLVENT possible.
Water is said to be a universal solvent because it can dissolve more solid substances than any other liquid. This outstanding property of water is key to its function in getting rid of wastes because these wastes readily dissolve in water and are transported or carried to sites of exit from the body. For example, urea is a waste in humans, which gets dissolved in water to form URINE that is excreted.
C can be taken out of the question as eukaryotic cells do not have a nucleus. A lysosome is is only in prokaryotic cells so B can be taken out of the question. The answer should be D.
