Technological advances have aided the industrial growth of the united states. what federal government policy has been most responsible for technological innovation?
a. granting of patents
b. imposition of tariffs
c. provision of subsidies
d. offer of tax credits

the answer is C.

Explanation: Technological innovation has helped US a lot during the growth of industry. Some policy adopted by federal government gave a head start to the technological innovation. Among these provision of subsidies aided a lot. When the federal government financed the R&D programes  the innovation of technology was increased.

observing traffic laws in exchange for driving on the highway.

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."