What is unique about HP t310 Zero Clients?

A.
Support for multiple displays

B.
Configuration-dependent operating system

C.
Flexible to fit into any client virtualization environment

D.
Purpose-built only for use in VMware environments

Explanation:
http://h10010.www1.hp.com/wwpc/pscmisc/vac/us/product_pdfs/t310_datasheet.pdf