Which statement correctly explains the aspect “Coordination and reversal” in the example “زَيْدٌ شَاعِرٌ لَا كَاتِبٌ”?

Qasr by Coordination, Negation–Exception, and Innamā

• Coordination and reversal — Zayd is a poet, not a writer.
• Restricting the agent — Only Zayd came.
• Scholarly analyses of innamā — Only; indeed no more than.
• Negation–exception versus innamā — Zayd is nothing but a poet / Zayd is only a poet.