**Select the product for the following cyclization.**- The image shows the cyclization of a linear sugar molecule into cyclic forms. The linear structure is on the left, with aldehyde (CHO) and multiple hydroxyl (OH) groups.- The reaction results in three potential cyclic structures labeled 1, 2, and 3. - Structure 1: A six-membered ring (pyranose form) with specific orientations of hydroxyl groups and hydrogens. - Structure 2: Another six-membered ring, similar to 1, but with a different specific arrangement of hydroxyl groups and hydrogens. - Structure 3: A different six-membered ring compared to 1 and 2, featuring another arrangement of hydroxyl groups and hydrogens.- Options for the selection are given below: - ○ 1 & 2 - ○ 1 - ○ 3 - ● 2- The correct answer, indicated by a filled circle, is option 2.

Sugars such as glucose exist in two forms in closed chain form or open-chain form, which is shown in the image. The close chain structure is known as the chair form (ring structure). The ring structure of the glucose is present in two forms that are α and β forms and are called anomers. After the process of cyclization, only two forms are produced that is α D glucopyranose (36%) as well as β D glucopyranose (64%). In the given structures, 2 is the β form because 1 and 6th carbon OH group is above the plane and 1 is the α form the 1st carbon OH is oriented downward. Only 1 and 2 structures are known after cyclization. Hence option A is correct.