**Core Concept**
Enantiomers are pairs of molecules that are mirror images of each other but are not superimposable. This occurs when a molecule has a chiral center, typically a carbon atom bonded to four different groups, resulting in a non-superimposable mirror image.

**Why the Correct Answer is Right**
Enantiomers have identical physical and chemical properties except for their optical activity. They rotate plane-polarized light in opposite directions, often denoted as D- (dextrorotatory) and L- (levorotatory). The presence of chiral centers in molecules leads to the formation of enantiomers. In some cases, one enantiomer may be biologically active, while the other is inactive or even toxic.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided, and thus we cannot evaluate its correctness.
* **Option B:** This option is not provided, and thus we cannot evaluate its correctness.
* **Option C:** This option is not provided, and thus we cannot evaluate its correctness.
* **Option D:** This option is not provided, and thus we cannot evaluate its correctness.

**Clinical Pearl / High-Yield Fact**
When dealing with enantiomers, it's essential to remember that their biological activity can be significantly different. For example, thalidomide is an infamous case of an enantiomerically pure compound with vastly different effects on the human body - one enantiomer is a potent sedative, while the other can cause severe birth defects.

**Correct Answer:**
(Note: The correct answer is missing as it wasn't provided in the initial prompt.)