Which statement correctly explains the aspect “Coordination versus innamā” in the example “زَيْدٌ شَاعِرٌ لَا كَاتِبٌ / إِنَّمَا زَيْدٌ شَاعِرٌ”?

Qasr by Coordination, Negation–Exception, and Innamā

• Coordination and reversal — Zayd is a poet, not a writer.
• Negation with exception — No one came except Zayd.
• Coordination versus innamā — Zayd is a poet, not a writer / Zayd is only a poet.
• Innamā and the listener — I am but a human like you.