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.

[Q]: I'm more concerned with the concept of why the individual that committed the murder was able to kill in the first place.
[A]: Valid

[Q]: Economic factors would suggest otherwise with regards to the right to choose not to do business with an individual if they do not wish to.
[A]: Valid

[Q]: Of course, when the founders wrote the Second Amendment they had in mind people owning much less powerful weapons than gun owners have now.
[A]:
Valid