What is the primary advantage of MPEG-4 part 10 over MPEG-2?

What is the primary advantage of MPEG-4 part 10 over MPEG-2?

A.
MPEG 4 uses twice the bandwidth

B.
MPEG 2 can have more programs

C.
MPEG 2 can have less programs

D.
MPEG 4 part 10 uses half the bandwidth