Question

Identify which argument is invalid.

A) If Rita watches the movie, then she will not exercise.
If she does not exercise, then she will not be sore tomorrow.
Therefore, if Rita watches the movie, then she will not be sore tomorrow.


B) If Rita watches the movie, then she will not exercise.
Rita exercised.
Therefore, she did not watch the movie.


C) Either Tom is cooking or I am hungry.
Tom is not cooking.
Therefore, I am hungry.


D) If Gene does not do the dishes, then he will play tennis.
Gene did not do the dishes.
Therefore, he will pla

Answer 1

D) If Gene does not do the dishes, then he will play tennis.
Gene did not do the dishes.
Therefore, he will play tennis.


E) If Gene does not do the dishes, then he will play tennis.
Gene played tennis.
Therefore, he did not do the dishes.