Which of the following statements about Cloud Computing

(A). Cloud computing enables on-demand access to various computing resources, 

(B). Public cloud computing involves a cloud service provider offering a range of computing resources over the public internet.

(C). Multi cloud is the use of only single clouds from two or more different cloud providers.

(D).  Private cloud is a cloud environment in which all cloud infrastructure and computing resources are dedicated to, and accessible by, one customer only.