Final answer:
The passage contains an argument with the conclusion that Cary is becoming a better drummer, supported by the premise that he has been practicing hard which is the first statement provided in the options.
Step-by-step explanation:
The passage in question does contain an argument, and its conclusion is "Cary is definitely becoming a better drummer". An argument consists of a conclusion and premises meant to support that conclusion. In this case, the reason or premise provided is Cary's hard practice. The statement "It's because he's been practicing so hard" is evidence indicating why the speaker believes Cary has improved, which supports the main claim.