Which icon represents the Mirror feature in SolidWorks?

The Mirror feature in SolidWorks is designed to create a symmetrical copy of a feature or a part across a specified line or plane. The icon that represents this feature typically illustrates the concept of reflection, showing how one part is reflected across a vertical line. This visual representation effectively conveys the function of the Mirror feature—taking an object and duplicating it in a mirrored fashion on the opposite side of the specified line.

In contrast, the other options do not accurately depict the specific action of mirroring. For instance, an icon that shows a line dividing two parts might suggest a separation function rather than a reflective action. Similarly, an icon featuring two parts on opposite sides could imply positioning or assembly rather than the mirroring process. Lastly, an icon showing a single part does not capture the essence of creating a mirrored counterpart. Thus, the representation of a part reflected across a vertical line most clearly conveys the purpose and functionality of the Mirror feature in SolidWorks.