Is the following statement true or false? In the products of methylation-hydrolysis, every -OH group corresponds to the position of a glycosidic bond in the starting polysaccharide.单项选择题

A

True - if the oxygen was participating in a glycosidic bond, it could not have been methylated.

B

True - all free -OH groups in the starting material would be methylated in the products.

C

False - free anomeric oxygens could be methylated, but the resulting acetals would hydrolyze to hemiacetals in the acidic hydrolysis step.

D

False - methylation only occurs on oxygens that form glycosidic linkages.

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