What happens to the system performance when the number of users is doubled, the number of processing nodes is doubled, and the amount of data is doubled in an MPPDB database

What happens to the system performance when the number of users is doubled, the number of processing nodes is doubled, and the amount of data is doubled in an MPPDB database
A . Performance improvement
B . Performance degradation
C . Unpredictable
D . The performance remains the same

Answer: D