What Are Two Principles According to the Build, Release, Run

Multiple Choice

What are two principles according to the build, release, run principle of the twelve-factor app methodology? (Choose two.)

A) Code changes are able to be made at runtime.
B) Separation between the build, release, and run phases.
C) Releases should have a unique identifier.
D) Existing releases are able to be mutated after creation.
E) Release stage is responsible for compilation of assets and binaries.