Which of the following describes the alignment of features in a straight profile?

In a straight profile, the alignment of features is characterized by a balanced and even arrangement that often appears smooth and harmonious. This means that the forehead, nose, and chin typically line up without significant protrusions or recesses.

The option stating "aligned with slight curvature" accurately reflects the nature of a straight profile, suggesting that while there may be very slight natural curves to these features, they essentially maintain a straight line. This alignment gives the profile a clean aesthetic that is often sought after in hair design, as it can complement various hairstyles and enhance the overall appearance of the face.

The other options describe various deviations from a straight profile. For instance, a protruding chin indicates a feature that does not align evenly with the forehead and nose, while a recessed forehead suggests a lack of alignment, leading to a different profile shape. Angular features imply sharp angles that can create a more chiseled or defined look, which is also distinct from the smooth, straight appearance of a straight profile.