Which rebuttal would be ineffective in an argumentative essay?

a. a rebuttal that acknowledges the opposition's point and uses clever words to insult it
b. a rebuttal that introduces facts to show the opposition's argument is incomplete
c. a rebuttal that presents research to show the opposition's argument to be incorrect
d. a rebuttal that uses information to prove the opposition's argument is irrelevant

the answer is A.   I know because I got it correct :p ^v^

Hope this is helpful :>

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.