Teacher: We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.
Teacher: Now, understand the problem? If you are still confused, see the following example:
If gun bans worked there would be no gun deaths in the countries that have banned guns.
Solution: Valid
Reason: It is an argument that claims that gun bans will not work.

Now, solve this instance: Isn't that why you think that everyone should be able to carry them on board?
Student:
Valid