Which statement$($s$)$ below is $($are$)$ TRUE? $($Choose one or more.$)$

A If real GDP grew slower than population, real GDP per person would fall.

B If population grew slower than real GDP$,$ real GDP per person would rise.

C If nominal GDP grew faster than real GDP$,$ the average level of prices would rise.

D If real GDP grew faster than nominal GDP$,$ the average level of prices would fall.