Ubuntu – Unity mode missing in VMware 15 Workstation Player [Ubuntu 18.04 LTS]

I have recently installed VMware Workstation 15 Player on my Ubuntu 18.04 laptop and and installed Windows 7 as the guest OS in VMware. I have installed VMware Tools and everything seems fine. I wanted to try out Unity mode, but can't seem to find it under Virtual Machine -> Virtual Machine Settings -> Options. The documentation repeatedly shows that Unity mode can be found in the Options menu. Why am I not seeing it? What am I missing?

Screenshots:

^Settings

^{VM Settings -> Hardware}

^{VM Settings -> Options}