Which two statements are true of Interim Fix (IF) Maintenance Delivery Vehicles? (Choose two.)

A.
Interim Fixes are formally tested and fully supported by IBM.

B.
Interim Fixes are uncertified fixes that may be used for testing only.

C.
Interim Fixes are installable packages which include one or more APAR fixes.

D.
Interim Fixes are not published on the IBM website and must be requested from support.

E.
Interim Fixes do not contain any documentation, Readme files or installation instructions.