I want to know the answer to the following question:
What has evolved over time?
All the background I'm provided with is that "Based on studies of these bronze inscriptions, it is clear that, from the Shang dynasty writing to that of the Western Zhou and early Eastern Zhou, the mainstream script evolved in a slow, unbroken fashion, until assuming the form that is now known as seal script in the late Eastern Zhou in the state of Qin, without any clear line of division.". Is that enough to answer the question?
Answer: no