Question

minor parties play the "spoiler" role in elections by
a. raising controversial issues
b. taking votes away from one of the major parties
c. using negative campaign advertisements
d. taking media attention away from the major parties

b or c. most likely c.

Answer 1

Nope. The "spoiler" role played by minor parties is to take votes away from one of the major parties. I suspect that minor parties use less negative campaign advertisements than do the major parties.