Companies use which of the following vendors to provide access to software and services rather than purchasing the applications and maintaining the applications themselves ?

Companies use which of the following vendors to provide access to soft

1.	Companies use which of the following vendors to provide access to software and services rather than purchasing the applications and maintaining the applications themselves ?
A.	Open source vendors
B.	Alliances
C.	Application service providers
D.	All of the above
E.	None of these
Answer» D. All of the above