Answer:
I believe it is c.
Explanation:
The mandate of heaven stated that the divine (the gods) gave an emperor the right to rule.
A) The conclusion paragraph.
With the concept of zero, we could express math (and by extension, everything) with just one concept: of there being something. This was contrasted with there not being something.
This presence/absence of something is very easily implementable in mechanical terms, which contributed to the development of hardware. So: the concept of 0 made our calculations easily physically implementable.
