Atomic structure

There are 4 chemically distinct structures. Please, select:

OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O

SVG file SMILES Show 3D Ionize

OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O