What can a PPM deployment be? (Select two.)
A.
a single-machine architecture with one web server and one application server
B.
a two-machine architecture with one web server and one application server
C.
a load-balancing architecture of two servers, each with a web server and an application server
D.
a load-balancing architecture of two servers, one with a web server and an application server
and one with only an application server
E.
a high-availability architecture with four servers: two web servers and two application servers