We would like you to assess the QUALITY of each of the following argument (discussing Death Penalty) 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 death penalty. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of death penalty.

[Q]: I cannot compare numbers with other western countries since we are the only one with capital punishment.
[A]: Valid


[Q]: Execution is quick, relatively simple, and very inexpensive regardless of the method used.
[A]: Valid


[Q]: As a general rule, the death penalty cost studies are worthless.
[A]:
Valid