Final answer:
The Head of Constantine best demonstrates the shift toward an inner spiritual life in late Roman sculpture through its C. Expressive Eyes, which reflect a spiritual introspection rather than worldly realism.
Step-by-step explanation:
What about the Head of Constantine best demonstrates the shift toward an inner spiritual life in late Roman sculpture? The correct answer is C. Expressive Eyes. Late Roman sculpture began to move away from the realism of classical forms and focus more on expressing an inner spiritual life. This shift is evident in the use of expressive eyes that are often oversized and gaze upwards, suggesting a look towards the divine or a reflection of the soul's inner workings. The abstract form and geometric hairstyle of Constantine's head indicate this movement towards a less literal and more spiritual or symbolic representation. The changes in the style of portraiture reflect the transformation of Roman culture, especially with the rise of Christianity, which emphasized the spiritual over the physical.
In contrast to the hyper-realism and emotional response elicited by Hellenistic sculpture, the Head of Constantine uses abstraction to convey a sense of eternity and transcendence, moving away from individualized, worldly depictions to those that evoke an ethereal and timeless essence.