A short story conserves characters and scenes, typically by focusing on just one conflict, and drives towards a sudden, unexpected revelation. Go easy on the exposition and the backstory, your reader doesn't need to know everything that you know about your characters.
The correct answer is the first option, 'Two teams, the Tomcats and the Huskies, battled for the city championship', because that is the only example which contains an appositive phrase, 'the Tomcats and the Huskies'.
PCM: Pulse code modulation. It is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, digital telephony and compact discs. The amplitude of this signal is sampled regularly at uniform intervals.
PAM: Pulse amplitude modulation. It is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses.
