Which vSphere kit should the administrator use to meet these requirements?

An administrator is setting up a new vSphere environment for application development with health monitoring and capacity management. The administrator has purchased three servers for the initial install. The administrator is NOT planning to grow the environment and needs to keep costs as low as possible.
Which vSphere kit should the administrator use to meet these requirements?
A. vSphere Essentials Kit
B. vSphere Essentials Plus Kit
C. vSphere with Operations Management Standard Acceleration Kit
D. vSphere with Operations Management Enterprise Acceleration Kit