The following statement is an example of what type of fallacy?

"If we allow the government to restrict the sale of semiautomatic weapons, before we know it, there will be a ban on ownership of handguns and even hunting rifles. And once our constitutional right to bear arms has been compromised, the right of free speech will be the next to go."
A. either-or
B. ad hominem
C. slippery slope
D. bandwagon
E. invalid analogy