A developer needs to create a multi-tier development stack for a home lab. Which vSphere product will support the architecture required for the least software cost?

vSphere Hypervisor is VMware's free, standalone ESXi hypervisor that supports running multiple VMs concurrently on a single physical host, making it suitable for a multi-tier dev stack. Because it is offered at no cost, it satisfies the least software cost requirement while still providing the enterprise-grade hypervisor features needed for complex VM architectures.

vSphere Essentials is a paid bundle requiring at least three licensed ESXi hosts and a vCenter Server license, making it significantly more expensive than the free Hypervisor.

VMware Player is a free desktop product but is designed to run one VM at a time and does not support the complexity of a multi-tier server stack.

VMware Workstation is a paid desktop virtualization product that, while capable of multi-tier setups, carries a software license cost that exceeds the free vSphere Hypervisor option.