Which two of the following statements explain creating alerts for NBAR2 applications? (Choose two.)

Which two of the following statements explain creating alerts for NBAR2 applications? (Choose two.)
A . Applications and NBAR2 applications in top applications are sorted by bits.
B . Applications and NBAR2 applications in top applications are sorted by bytes.
C . It is not possible to combine applications and NBAR2 applications.
D . It is possible to combine applications and NBAR2 applications.

Answer: B, D