What is the difference between the d and l configuration in organic chemistry?

In organic chemistry, the d and l configurations refer to the arrangement of atoms around a chiral carbon atom. The d and l configurations are based on the orientation of the hydroxyl group on the chiral carbon atom. In the d configuration, the hydroxyl group is on the right side, while in the l configuration, it is on the left side. These configurations are important for determining the optical activity of a molecule.