In the scenario of a company responsible for providing an on-demand operating system and environment for 1,000 desktops, which of the following can be an alternative phrasing?

a) A company offering software services for 1,000 desktops
b) A firm providing operating systems to 1,000 computers on demand
c) A corporation delivering on-demand desktop environments
d) An organization supplying operating systems for 1,000 PCs