What is the ideal target environment for the HP CloudSystem Matrix solution?

A.
Software-as-a-Service (SaaS)
B.
Platform-as-a-Service (PaaS)
C.
Infrastructure-as-a-Service (IaaS)
D.
Applications-as-a-Service (AaaS)
Explanation:
Reference:
http://www8.hp.com/uk/en/pdf/HP_CloudSystem_Matrix_Brochure_tcm_183_1277185.pdf9page 2, invest in productivity and innovation, 3rd para, first sentence)