Which example shows a single noun of working lā built on fatḥ?

Ism Inna and the Noun Governed by Lā of Generic Negation

• لَا رَجُلَ فِي الدَّارِ
• لَا زَيْدٌ فِي الدَّارِ
• لَا فِي الدَّارِ رَجُلٌ
• لَا غُلَامَ رَجُلٍ