We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) 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 gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.
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Question: That just means their moral code doesn't fluctuate based on society's ever-changing standards."

Answer: Invalid


Question: That statistic could mean that marriage lowers promiscuity, but it could also very well mean that it is only the non-promiscuous people who get married.

Answer: Valid


Question: I believe that while this idea is somewhat radical, it is the only possible solution that takes into consideration the valid concerns of both sides of the issue.

Answer:
Invalid