Which two statements are true about Complex Event Processing (CEP)?

A.
It is a method to achieve the best outcome in a model where data is already stored in a
relational database.

B.
It is a technique used for querying data prior to itbeing stored within a database or without it
ever being stored.

C.
It is a highly efficient method of analyzing and processing streams of data.

D.
It is a technique for rapidly storing large amounts of unstructured data.

E.
It executes extremely complex queries against a database using a new query language.