The passage suggests that which of the following would be LEAST important in determining whether nonenzymatic glycosylation is likely to have taken place in the proteins of a particular tissue? A. The likelihood that the tissue has been exposed to free glucose B. The color and spectrographic properties of structures within the tissue. C. The amount of time that the proteins in the tissue have persisted in the body D. The number of amino groups within the proteins in the tissue E. The degree of elasticity that the tissue exhibits