The early prehistoric sculptures discovered at Hohle Fels cave in Germany are considered the oldest examples of human art ever found and may suggest evidence of early shamanism. However, the characterization of them being "so intricate they break the theory of the gradual evolution of art" is more interpretative and debated among scholars. Therefore, the best fitting response based on the options provided would be:
• the oldest examples of human art ever found
However, if your question allows for broader interpretation including the shamanism aspect, then all of the above could also be seen as a reasonable choice. But in the strictest sense related to the most widely accepted fact, the first option is correct.