If you select 4 features to mirror in a single Mirror Feature operation, how many features will be created?

In Siemens NX, when you perform a Mirror Feature operation, the primary aim is to create a mirrored version of existing features across a defined plane. If you select four features to mirror, you are essentially using the mirror operation to duplicate those features on the opposite side of the mirroring plane.

However, it is crucial to understand that the mirror operation does not create new features in the way that you might be interpreting. Instead, what happens is that the operation recognizes the selected four features as a single entity. The result is that one mirrored feature is generated as a duplicate of the original set, meaning it is seen as one new feature that reflects the entire selection rather than each feature being counted individually.

Therefore, the answer reflects the outcome of creating one mirrored instance of the selected features. This is why the correct answer indicates that only one feature will be created from the mirror operation, encapsulating all four selected features into one mirrored feature.