Final answer:
The Grant administration indeed supported the adoption of the Enforcement Acts, which aimed to combat violence against black voters. The claim that the necessary and proper clause limits the government's power is false; it is used to expand Congressional powers.
Step-by-step explanation:
According to Section 17.5.5, the statement that the Grant administration supported the adoption of the Enforcement Acts to curb Klan violence against black voters in the South is True. These sets of laws were enacted by Congress in the early 1870s to enforce the Fourteenth and Fifteenth Amendments and to protect African Americans' rights against the violence from the Ku Klux Klan and other extremist groups.
The Enforcement Acts were federal laws that provided penalties for those who interfered with a citizen's right to vote and gave the national government the authority to enforce these rights.
The statement in Exercise 9.3.1 that the necessary and proper clause has had the effect of limiting the power of the national government is False. The clause, which is contained in Article I, Section 8 of the United States Constitution, has been used to expand the powers of the national government by allowing Congress to pass laws deemed necessary and proper for carrying out its enumerated powers.