Answer:
High tariffs & land grants
Explanation:
The reality of the government’s involvement in the economy is believed to be "High tariffs & land grants." This is because to protect the domestic company from the stiff competition from the foreign companies, this often leads them to the imposition of high tariffs.
Similarly, in the attempt of the government or provide infrastructural amenities they may issue land grants to large corporations to build infrastructures such as the railroad, bridges, roads, etc.
Hence, in this case, the correct answer is "High tariffs & land grants"