The most relevant response regarding how the Inca interacted economically with their empire is:
The Inca required mit’a labor for economic needs of the empire.
The Inca used the mit’a system, which was a form of labor tax requiring citizens to work on various state projects and agricultural tasks. This system allowed the empire to mobilize resources efficiently and support large-scale construction, agricultural production, and infrastructure projects like roads and bridges, which were essential for managing their vast territory and maintaining economic stability.